Serving Suffolk & Nassau County · Long Island, NY

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Indoor Air Quality

Breathe Cleaner,
Healthier Air.

Improve the air quality in your Long Island home with professional IAQ assessments and solutions from A1 Heating & Air Conditioning.

What we offer

Indoor Air Quality Solutions
for Healthier Homes.

The air inside your home can be up to 5x more polluted than outdoor air. Our IAQ solutions help you breathe easier, sleep better, and live healthier.

IAQ assessments
UV light installation & service
Whole-home air purification systems
Humidifiers & dehumidifiers
Air filtration upgrades
Duct repair, replacement & sealing
Carbon monoxide detection
Ventilation improvements

Free assessment

Not sure where to start?

We'll assess your home's air quality and recommend the right solutions for your family's needs.

Common questions

Indoor Air Quality FAQs

How can I improve the air quality in my Long Island home?

The most effective improvements include upgrading to a high-MERV air filter, installing a whole-home air purifier or UV germicidal light, and adding a whole-home humidifier or dehumidifier. We'll assess your home and recommend the right solution.

Do whole-home air purifiers really work?

Yes. Whole-home air purifiers installed in your HVAC system treat all the air circulating through your home, removing allergens, bacteria, viruses, and VOCs. They're far more effective than portable room units.

What is the ideal indoor humidity level?

The ideal indoor relative humidity is between 35% and 50%. Too low causes dry skin, static electricity, and respiratory irritation. Too high promotes mold growth and dust mites. A whole-home humidifier or dehumidifier keeps it in the right range year-round.

Are UV lights effective for HVAC systems?

Yes. UV germicidal lights installed in your air handler kill mold, bacteria, and viruses as air passes through your system. They're especially beneficial for households with allergy or asthma sufferers.

How often should I change my HVAC air filter?

Standard 1-inch filters should be changed every 1–3 months. Thicker media filters (4–5 inches) can last 6–12 months. If you have pets or allergies, change filters more frequently. A clogged filter reduces airflow and air quality.

Ready to breathe easier?

Free IAQ Assessment for Your Home

Contact us for a free indoor air quality assessment for your Long Island home.