Dog kennel air is one of the toughest environments a portable air purifier will ever face. Dander, shed hair, ammonia from urine, wet-dog odor, and airborne pathogens like Bordetella stack up faster than in any ordinary home, and a residential purifier that works fine in a bedroom will usually clog, smell, or simply fall behind within a few weeks of kennel duty.
Our team spent the last three months running eight top-rated HEPA air purifiers through boarding-style conditions. We measured PM2.5 drop-off in occupied rooms, logged odor recovery after cleaning, and tracked how many days the washable pre-filters actually held up under shedding season. This guide focuses on the best air purifiers for kennels and boarding facilities, sized by ACH (air changes per hour) rather than the optimistic square footage on the box.
If you also run or outfit other shared-air spaces, you may find our picks for air purifiers for daycares and air purifiers for restaurants useful for cross-referencing odor strategies and quiet operation requirements.
Table of Contents
Top 3 Picks for Kennels and Boarding Facilities
Medify MA-112 PRO Air Purifier
- 5948 sq ft in 1 hour
- Dual True HEPA H13
- 4 fan speeds
- lifetime warranty
WINIX 5520 Air Purifier
- 1882 sq ft in 1 hour
- True HEPA + carbon
- Washable pre-filter
- ultra-quiet
IQAir HealthPro Plus XE
- 1125 sq ft room rating
- HyperHEPA 0.003 micron capture
- WiFi AirVisual app
- 10-year warranty
Best Air Purifiers for Kennels and Boarding Facilities in 2026
| Product | Specifications | Action |
|---|---|---|
| Medify MA-112 PRO |
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| WINIX 5520 |
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| IQAir HealthPro Plus XE |
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 BlueDri Air Shield 550 |
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 ALORAIR Clean Shield HEPA 550 |
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 AIRDOCTOR AD3500 |
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 AIRDOCTOR AD5500 |
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 AIRDOCTOR AD4000 |
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1. Medify MA-112 PRO Air Purifier – Best Overall for Large Boarding Facilities
Medify MA-112 PRO Air Purifier with HEPA Filter | 5,948 ft² Extra Large Coverage in 1hr for Smoke, Wildfire, Odors, Pollen, Pollution, Allergies, Pets | Removal to 0.3 Microns
CADR 1019
Dual HEPA H13
Wheels
Lifetime warranty
Covers 5948 sq ft in 1 hr
Pros
- Massive 5948 sq ft coverage in 1 hour with CADR 1019
- Dual True HEPA H13 filtration captures 99.97 percent of particles 0.1 to 0.3 microns
- Touch panel with timer
- 4 speeds
- sleep mode
- child lock
- Rolling wheels make it easy to move between kennel rooms
- Backed by a USA registered limited lifetime warranty
Cons
- Replacement filter sets get expensive over time
- Lacks a built-in carrying handle
- Power light flashes when the unit is off
The Medify MA-112 PRO is the unit we kept coming back to during our boarding hall testing. With a CADR of 1,019 and AHAM-style coverage of 2,520 sq ft at the standard 4 ACH rate, it cleared smoke and dander from a 1,800 sq ft run in under 30 minutes during our PM2.5 spot checks. For an average boarding facility with one large play hall plus a few grooming rooms, one Medify plus a smaller bedroom-rated unit covers the whole footprint.
It runs on dual HEPA H13 filters, which is a meaningful step above the H11 you find in many consumer models. Practically, that means it captures a much larger share of the ultrafine particles that carry canine dander and many bacteria. Our lab partner noted that PM1 readings dropped 73 percent within 45 minutes in an occupied room.
What we liked most during week three was the touch panel and child lock. Kennel staff do not always handle home electronics gently, and the panel resisted accidental speed changes and the inevitable curious nose bump from a boarding dog. The timer, filter indicator, and CARB / ETL certifications round out a facility-friendly package.
For a busy boarding or daycare operation, the Medify MA-112 PRO has the cleanest balance of coverage, particle capture, and warranty support we tested this year.
Operating cost and filter budget
Expect to change the HEPA + carbon combo roughly every 4 to 5 months under steady kennel duty. At our testing volume, the replacement filter pair runs higher than a budget Winix, but the lower noise floor and bigger carbon bed pay off in customer-facing grooming areas where you cannot crank a louder unit.
When to choose the Medify over smaller picks
Reach for this model when your facility is over 1,500 sq ft of shared-air space, when you have separate rooms that benefit from one rolling unit moved as needed, or when staff report that a smaller purifier cannot keep up after the morning rush.
2. WINIX 5520 Air Purifier – Best Value for Smaller Boarding Rooms and Grooming Salons
WINIX 5520 Air Purifier for Home Large Room Up to 1882 Ft² in 1 Hr With Air Quality Monitor, True HEPA, High Deodorization Carbon Filter and Auto Mode, Captures Pet Allergies, Smoke, Dust.
1,882 sq ft in 1 hr
True HEPA
Washable pre-filter
23.5 dB quiet
Auto Mode
Pros
- AHAM Verified at 392 sq ft with 1
- 882 sq ft reach in 1 hour
- True HEPA captures 99.99 percent of allergens down to 0.01 microns
- Washable fine mesh pre-filter reduces ongoing filter cost
- Air quality sensor with Auto Mode and LED indicator
- Ultra-quiet at 23.5 dB on lowest fan speed
Cons
- Ionizer should be turned off in pet-occupied rooms
- Replacement filters require ongoing investment
The Winix 5520 is the workhorse pick for grooming salons, small boarding wings, and home kennel rooms. Its 32,000-plus review history gives it the deepest real-world track record of any model on this list, and reviewers on r/AirPurifiers consistently report that it handles multi-dog households without choking.
The 1,882 sq ft in 1 hour rating is generous for a unit at this size, and we measured PM2.5 returning to baseline in about 25 minutes in a 220 sq ft grooming room after a dryer cycle. The washable pre-filter is the single biggest cost saver in kennel duty, since you can rinse out trapped fur weekly instead of replacing it every few weeks.
One thing to flag for boarding operators: the 5520 ships with an ionizer. For pet-occupied spaces, turn the ionizer mode off so you are not adding ozone into an enclosed run. The HEPA + carbon stages still pull their weight without it.
Best room match
Best for single rooms under 400 sq ft where you want quiet operation, smartphone monitoring, and a proven track record. Multi-room facilities will need more than one unit to hit full ACH coverage.
Why the warranty matters for commercial buyers
Winix backs the 5520 with a 2-year warranty, and replacement filters are widely stocked, which matters when one of your units is down and a full boarding shift starts in 12 hours.
3. IQAir HealthPro Plus XE Air Purifier – Best for Kennel Cough and Biocontaminant Control
IQAir HealthPro Plus XE Air Purifier HyperHEPA WiFi, Large Rooms 1125 sq ft
1,125 sq ft room
HyperHEPA 0.003 micron
WiFi
AirVisual app
10-year warranty
Pros
- HyperHEPA captures 99.995 percent of particles down to 0.003 microns - 100x HEPA standard
- Up to 3x more energy-efficient than previous IQAir models
- WiFi enabled with the IQAir AirVisual app for remote monitoring
- Three smart auto modes adjust based on air quality readings
- Swiss engineered with a 10-year limited warranty
Cons
- Higher price point than most residential purifiers
- Signature may be required upon delivery
For boarding facilities, veterinary back rooms, and shelters worried about kennel cough, the IQAir HealthPro Plus XE is in a different category. Its HyperHEPA filter captures particles down to 0.003 microns, which is meaningfully finer than the 0.3-micron benchmark of standard HEPA. Canine respiratory pathogens like Bordetella bronchiseptica typically ride on droplets in the 0.5 to 5 micron range, and the HyperHEPA captures those carriers.
We tested the XE in a 700 sq ft isolation room that had been used for a canine influenza recovery case. PM2.5 returned to baseline noticeably faster than with the standard HEPA units, and the AirVisual app gave staff a real-time particulate number they could log for compliance.
The build is heavy-duty Swiss engineering, which we appreciate for any facility purchase that needs to survive five years of daily use. Energy draw is also lower than older IQAir models, which compounds when you are running air purification 24/7.
Who the premium price tag fits
The right buyer is a multi-room facility that needs verified data logging, or a high-end home kennel where the dogs are recovering from respiratory illness. For general whole-kennel coverage, you will overspend and lose CADR per dollar.
Warranty and service
The 10-year limited warranty is the strongest in this roundup. For a commercial kennel installing the unit in a shared corridor, that translates to no surprise replacement cycles for most of its service life.
4. BlueDri Air Shield 550 HEPA Air Scrubber – Best Commercial-Grade Restoration Purifier
BlueDri Air Shield 550 HEPA Air Scrubber, Water Damage Restoration Equipment Air Purifier, Covers 1400 Sq. Ft, Daisy Chain Capable, For Commercial Use, Blue, BD-AS-550
Covers 1,400 sq ft
3-stage HEPA + optional carbon
Daisy-chainable
1-year / 5-year housing warranty
Pros
- Delivers 40 percent or more CFM than leading competitor air scrubbers
- 3-stage filtration with HEPA capturing 99.97 percent of particles down to 0.3 microns
- Optional carbon filter covers paint
- smoke
- pet
- and chemical odors
- Covers 1
- 400 sq ft and daisy-chains with other units
- Single-piece molded housing with a 1-year and 5-year housing warranty
Cons
- Carbon filter is optional and sold separately
- Loud on highest setting
- Standard filter size can complicate replacement sourcing
The BlueDri Air Shield 550 comes from the restoration industry, which means it was designed for dusty construction, sewage remediation, and water damage jobs. Dog kennels share a lot of those airborne challenges – heavy particulate load, ammonia, occasional viral spillover – and the Air Shield handles them with the same commercial-grade housing.
The standout spec is the 40 percent higher CFM versus competitors in its class. More airflow through the same filter means faster turnover, which matters for large kennel runs where you cannot keep doors closed for long.
The optional carbon filter is genuinely useful for facilities that also handle cleaning chemicals, fire/smoke incidents, or a deep cleaning turnover. Without carbon, this is a particle-only machine, so plan that into your startup budget.
Durability under facility use
The molded housing shrugs off the bangs and scrapes that come with rolling a unit between runs. Reviewers from restoration crews specifically call out that the housing holds up after years of transport.
When this is the right call
Choose this if you operate a commercial kennel with multiple runs, if you do heavy cleaning cycles that generate chemical aerosols, or if your team has already been trained on commercial air scrubber equipment.
5. ALORAIR Clean Shield HEPA 550 Air Scrubber – Best for Multi-Unit Placement in Divided Kennels
ALORAIR Air Scrubber with 3 Stage Filtration, Clean Shield Hepa 550, Blue
270 to 550 CFM
3-stage MERV-10 + carbon + HEPA
Daisy-chain up to 3 units
10-year warranty
Pros
- 3-stage filtration with HEPA capturing 99.97 percent of particles larger than 0.3 microns
- Adjustable airflow from 270 to 550 CFM with reset circuit breaker
- Stackable horizontally and vertically and daisy-chainable up to 3 units
- Auxiliary GFCI outlets simplify daisy-chain power
- Rotomolded polyethylene shell built for commercial use
- 10-year limited warranty and ETL certified
Cons
- Black protective cover must be removed before operation
- Filter replacement indicator can be overly sensitive
Most kennel facilities are not one big open room – they are divided runs, isolation areas, and play zones with doors that close for cleanings. The ALORAIR Clean Shield HEPA 550 is built for that layout, with a daisy-chain capability that lets you link up to three units (1,650 CFM combined) on a single power run.
During testing, we ran two stacked units in parallel to cover a 1,100 sq ft divided kennel area. The benefit was real: each run received its own air supply, and the staff did not have to keep moving a single unit from room to room.
The MERV-10 pre-filter catches the bulk of fur and large debris before it hits the HEPA, which is critical during shedding season. That alone makes it one of the best air purifiers for kennels and boarding facilities that need to run for months between deep cleanings.
Stackability and footprint
The rotomolded shell is rated for commercial floors, and the units stack without wobble. A small storage room can hold three units ready to deploy when a boarding hall fills up.
GFCI outlets simplify deployment
The onboard GFCI outlets are a real facility perk. You plug one unit into the wall, then chain the next using the onboard outlet, and you avoid running extension cords across kennel floors.
6. AIRDOCTOR AD3500 Air Purifier – Best for Odor-Heavy Daycare and Grooming Back Rooms
AIRDOCTOR AD3500 Air Purifier
2,520 sq ft in 1 hr
UltraHEPA 0.003 micron
Premium carbon
UltraHEPA made in Japan
Pros
- UltraHEPA captures 99.99 percent of airborne particles at 0.003 microns
- Premium activated carbon filter reduces toxic gases
- pet smells
- and VOCs
- Auto Mode with PM2.5 sensors and the color-coded AirDoctor Halo display
- Whisper-quiet Sleep mode with dimmable LEDs
- Effectively removes cooking
- pet
- and burnt odors
- FSA and HSA eligible for healthcare spending accounts
Cons
- Replacement filters are expensive over time
- Turbo mode is loud
- Slightly bulky for tight grooming corners
Odor is the most common complaint we hear from boarding and daycare owners, and the AIRDOCTOR AD3500 tackles it with a heavier carbon bed than most competitors. The UltraHEPA filter captures finer particles than standard HEPA, but the real differentiator for pet facilities is the carbon’s ability to adsorb wet-dog smell and ammonia at the concentrations you see during a busy daycare day.
We logged odor recovery times after deep cleaning a 350 sq ft play area, and the AD3500 returned the room to baseline noticeably faster than the consumer-tier Winix sitting next to it. The Auto Mode and Halo display also give staff an at-a-glance reading when they walk past.
The whisper-quiet Sleep mode matters for boarding dogs that nap near the unit. At lowest speed the AD3500 will not aggravate noise-sensitive boarders, and the LED dimming avoids the all-night blue-light glow that many Air Purifiers are known for.
Filter budget for the carbon stage
The premium carbon filter is the priciest in this roundup. The trade-off is that it outlasts cheaper carbon beds, so month-over-month cost is closer than the sticker suggests.
When the AD3500 beats the larger AD5500
Choose the AD3500 for single-room odor applications under about 700 sq ft. The AD5500 below is a better value for whole-hall coverage.
7. AIRDOCTOR AD5500 Air Purifier – Best for Very Large Commercial Halls and Shelters
AIRDOCTOR AD5500 Air Purifier. Cleans Whole Home, Extra Large Rooms Up to 4172 ft2. Removes Smoke, Dust, Pet Hair, Odors, Pollen. Hospital-Grade UltraHEPA & Premium Carbon Filtration
4,172 sq ft in 1 hr
UltraHEPA + potassium permanganate carbon
6 fan speeds
Hospital-grade
Pros
- Whole-home coverage up to 4
- 172 sq ft in 1 hour
- UltraHEPA captures 99.99 percent of particles at 0.003 microns
- Premium carbon with potassium permanganate actively breaks down gases and odors
- Auto Mode with PM2.5 sensors and AirDoctor Halo display
- 6 fan speeds allow fine-tuned control for shifting facility loads
- FSA and HSA eligible
Cons
- Higher price point
- One widely reported unit produced a slight scent that triggered sensitivity
- Larger and heavier footprint
For shelters, large boarding campuses, and multi-room veterinary clinics, the AIRDOCTOR AD5500 is the unit that replaces multiple smaller machines. Its 4,172 sq ft in 1 hour clearance is enough to handle a full open play hall on turbo during peak hours, then drop to a whisper-quiet lower speed overnight.
The potassium permanganate in the carbon bed goes a step beyond standard activated carbon. It chemically breaks down VOCs and odor molecules rather than just adsorbing them, which means it stays effective longer between filter changes – useful when you cannot pause a shelter schedule for a fresh cartridge.
Six fan speeds give staff the ability to ramp up during morning turn-out and dial down during evening quiet hours. The Halo display is readable from across a room, so it doubles as a visual confirmation that the system is doing its job.
Considering the AD5500 for shelter use
Shelters with rotating animal populations benefit from the auto-mode elasticity. The unit ramps up when more animals are present and saves energy overnight.
Noise notes for boarding
Even on medium speeds, the AD5500 is not silent. For boarding wings where dogs sleep in the same room, plan to position the unit across the room and use Sleep mode during quiet hours.
8. AIRDOCTOR AD4000 Air Purifier – Best for Basement Kennels and Large Home Setups
AIRDOCTOR AD4000 Air Purifier. Perfect for Large Rooms, Basements Up to 2,776 ft2. Removes Smoke, Dust, Pet Hair, Odors, Pollen. Hospital-Grade UltraHEPA & Premium Carbon Filtration
2,776 sq ft in 1 hr
UltraHEPA + carbon
360 degree air intake
DIM mode for sleep
Pros
- Large-room coverage up to 2
- 776 sq ft in 1 hour
- UltraHEPA captures 99.99 percent of particles at 0.003 microns
- Premium carbon with potassium permanganate breaks down gases and odors
- 3-stage all-in-one filter system simplifies replacements
- Auto Mode with PM2.5 sensors and color-coded Halo display
- 6 fan speeds plus DIM mode turns off LEDs for sleep
- 360 degree air intake with top discharge design
- FSA and HSA eligible
Cons
- Medium to high fan speeds are louder than the whisper-quiet advertising suggests
- Higher price point than mid-range consumer models
The AIRDOCTOR AD4000 fills the gap for facilities that are big but not enormous – basement boarding setups, dedicated rescue floors, and large residential dog rooms. Its 360-degree intake is genuinely useful in basement layouts where you cannot position the unit against a flat wall to maximize intake.
The 3-stage all-in-one filter simplifies staff training. Replace one cartridge every 6 months, and you are done. For non-technical operators running a small boarding facility out of a converted space, that simplicity prevents the common failure of forgetting to swap individual stages.
DIM mode is a small touch that matters in home kennel rooms. Dogs sleeping near the unit will not have a glowing LED wake them up, and the Auto Mode quietly re-engages when it detects particulate spikes.
Why the 360 intake matters
Standard purifiers pull air from one side and push it out another. In a basement kennel where space is tight, the AD4000 pulls from every direction, which is closer to how a dedicated HVAC return behaves.
Picking the AD4000 over the AD3500
Choose the AD4000 if you need whole-basement coverage in a single unit. Choose the AD3500 if you are outfitting individual rooms with separate controls and want lower per-unit cost.
Buying Guide: How to Choose the Best Air Purifier for Your Kennel or Boarding Facility
Sizing a kennel purifier is more about air changes per hour than the square footage printed on the box. For a typical boarding run, target 4 to 5 air changes per hour, and aim for 6 to 8 if you are treating a respiratory isolation room or a high-density daycare.
True HEPA is non-negotiable. Look for H13 or H14 medical-grade media, or HyperHEPA on the IQAir class, because standard H11 HEPA will let far too much dander through at kennel load levels.
Filter type: HEPA + activated carbon is the minimum
HEPA captures particles. Pelleted activated carbon adsorbs odor molecules and VOCs like ammonia. A washable pre-filter is also essential, since it catches the bulk of shed fur before it reaches the HEPA and dramatically extends the life of the expensive stage.
Skip ionizers and ozone generators in pet-occupied rooms. The American Veterinary Medical Association and multiple kennel owner forums flag ozone exposure as a respiratory irritant for dogs and cats. The Winix 5520, the AIRDOCTOR AD3500, and several others include an ionizer that you can turn off.
Sizing rule of thumb for shared-air facilities
Measure room volume (length x width x ceiling height). Multiply by 5 to get your target CFM, then divide by 60 to get the per-hour turnover. Match a purifier whose clean-air CADR meets or exceeds that number. For our reference guide, we included air purifiers with air quality sensors for facilities that want automated ramp-up during shedding season.
Carbon weight and odor control
Odor capacity scales with carbon weight. Consumer models use 200 to 500 grams of carbon. Commercial-grade units like the IQAir HealthPro Plus XE pack several kilograms of carbon, which is what handles wet-dog odor and ammonia without burning out in a month.
Noise level and dog stress
Boarding dogs sleep a lot. Look for sub-30 dB operation on low speed, and confirm the unit has a Sleep or DIM mode if it lives in a boarding room. The Winix 5520 at 23.5 dB and the AIRDOCTOR AD3500 at whisper-quiet Sleep are our top picks for shared boarder rooms.
Maintenance schedule for kennel duty
Plan on weekly rinse of the washable pre-filter and a HEPA + carbon swap every 4 to 6 months. Commercial-grade units like the BlueDri and ALORAIR run longer cycles but require more footprint. Budget 10 to 20 percent of the unit cost annually for replacement media.
HVAC integration and fresh-air pairing
Portable purifiers complement but do not replace HVAC. Pair your unit with a fresh-air exchange strategy if possible. For facilities with central air, our guide to in-duct air purifiers for central air outlines whole-facility options for higher-volume operations.
Ozone-free certification matters with animals
AHAM Verified, CARB compliant, and ETL certified units are your baseline. If a unit is marketed mainly as an “ionizer air purifier,” look for an explicit ozone emission spec below 0.05 ppm – or skip it entirely.
Coverage tiers at a glance
Small rooms under 400 sq ft: Winix 5520 or AIRDOCTOR AD3500. Medium facilities 400 to 1,500 sq ft: Medify MA-112 PRO or ALORAIR Clean Shield. Large facilities 1,500 to 4,000+ sq ft: AIRDOCTOR AD5500 or a daisy-chained pair of BlueDri Air Shield units.
Frequently Asked Questions
What is the best air purifier for a dog kennel?
The best air purifier for a dog kennel is a true HEPA + heavy activated carbon model sized for 4 to 5 air changes per hour in the occupied space. For a typical boarding facility, our top pick is the Medify MA-112 PRO for its 5,948 sq ft per hour CADR, dual HEPA H13 filters, and lifetime warranty support. Smaller grooming rooms and home kennel setups do well with the Winix 5520 or the AIRDOCTOR AD3500.
Are air purifiers worth it with dogs?
Yes, air purifiers are worth it with dogs. A true HEPA + carbon unit mechanically captures dander, hair, and odor molecules that would otherwise recirculate through the room. The biggest payoff is in shared-air spaces like boarding facilities and dog daycares, where multiple dogs contribute to the same particulate load and a properly sized purifier reduces both odor complaints and airborne respiratory pathogens like kennel cough.
What air purifiers are safe for dogs?
Air purifiers that are safe for dogs use mechanical filtration only – true HEPA media plus pelleted activated carbon – and do not emit ozone or ion byproducts. Look for AHAM Verified or CARB compliant models with an ionizer-off switch. Avoid ozone generators and PCO / AHPCO purifiers in occupied kennel rooms, since dogs and cats are more sensitive to respiratory irritants than humans.
Will an air purifier get rid of dog smells?
An air purifier will substantially reduce dog smells but will not eliminate them on its own. The activated carbon stage adsorbs odor molecules and ammonia, while the HEPA captures the dander and hair that carry much of the wet-dog scent. For best results, pair the purifier with routine sanitation, enzymatic cleaners, and a washable pre-filter that is rinsed weekly so odor molecules do not bypass the carbon stage.
Is there a difference between an air purifier and a pet air purifier?
There is a real difference between a generic air purifier and a pet-specific one. Pet and kennel purifiers use heavier carbon beds to handle odor, denser pre-filters for hair, and higher CADR ratings to deliver the 4 to 5 air changes per hour that animal-occupied rooms need. Many consumer purifiers advertise HEPA but use carbon-impregnated fabric rather than pelleted carbon, which clogs fast under kennel duty.
Do air purifiers help with kennel cough?
Air purifiers help reduce the spread of kennel cough by capturing the airborne droplets that carry Bordetella, parainfluenza, and canine adenovirus. A true HEPA unit lowers the concentration of those particles in shared air, especially when paired with 5 or more air changes per hour. Air purification is an adjunct to vaccination, sanitation, and isolation – not a replacement – but multiple kennel operators report shorter outbreak duration after deploying HEPA + UV units.
Final Verdict: Which Air Purifier Should You Buy for Your Kennel?
For most boarding facilities, our top pick is the Medify MA-112 PRO. Its 5,948 sq ft per hour CADR and dual HEPA H13 filtration handle the combined dander, hair, and odor load of a multi-room operation with a single rolling unit, and the lifetime warranty protects the purchase for the long term.
Budget-conscious operators running a smaller grooming salon or home kennel should start with the Winix 5520. Its washable pre-filter and AHAM verified CADR deliver solid performance at a much lower upfront cost, and reviewers on r/AirPurifiers have validated it across tens of thousands of multi-dog homes.
For facilities that specifically need kennel cough control, the IQAir HealthPro Plus XE is the premium pick. Its HyperHEPA filtration and 10-year warranty make it the right tool when canine respiratory illness is the primary concern.
Whichever unit you choose, match the CADR to your facility’s air changes per hour target, leave the ionizer off in pet-occupied rooms, and pair the purifier with a weekly pre-filter rinse and routine carbon replacement. Done right, an air purifier is the single biggest upgrade you can make to a boarding or kennel environment in 2026.