Indoor Air Quality · Nationwide
Whole-home air filtration and purification
The best upgrade for most homes is a 4–5 inch media filter cabinet with a MERV 11–13 filter. It captures fine dust and much of the smoke without choking airflow the way a thin high-MERV filter can. Electronic and polarized-media air cleaners are options for allergies.
- Same-day appointments when available
- Licensed HVAC contractors
- Written price before any repair

Indoor air problems vary by region: wildfire smoke across the West, desert dust in the Southwest, heavy pollen in the Southeast, and winter inversions in mountain valleys. All of them bring fine particles indoors.
Thin 1-inch MERV 13 filters can restrict airflow on systems that weren't designed for them. A media cabinet gives much more filter area.
Air Filtration & Purifiers at a glance
- Category
- Indoor Air Quality
- Service area
- Nationwide
- Typical visit
- Check airflow → Choose → Install → Set a schedule
- Urgent help
- Scheduled service
- Equipment covered
- Media filter cabinets, MERV 8–13 filters, Electronic air cleaners, Polarized-media cleaners
Symptoms
Signs you need air filtration & purifiers
- Dust settles fast after cleaning
- Allergy or asthma symptoms indoors
- Smoke smell during fire season
- Filters clog in weeks
- Pets in the home
Process
How the visit works
- 1
Check airflow
Measure static pressure to see what filter the system can handle.
- 2
Choose
Media cabinet, electronic air cleaner or polarized media.
- 3
Install
Cabinet fitted at the return or air handler.
- 4
Set a schedule
Filter change interval for your home.
Cost
What affects the price
Every contractor sets their own prices. These are the things that move the number. Ask for a written price before work starts.
- Filter cabinet size
- Electronic vs. passive filtration
- Return plenum changes
Before the tech arrives
What you can safely do
Safe to try
- Change 1-inch filters every 1–2 months
- Write the date on each filter
Stop and call
- Avoid ozone-generating 'purifiers'
FAQ
Air Filtration & Purifiers questions
What MERV filter should I use?+
MERV 8 is a sound baseline. MERV 11–13 captures smoke and fine dust better, but use it in a deep media cabinet or confirm your system's airflow can handle it.
Air Filtration & Purifiers by state
Related
Related services




Guides
Need heating or cooling help now?
Call to be connected with a licensed HVAC contractor serving your ZIP code, or send a request online.