We talk to a lot of homeowners who are concerned about their indoor air quality but aren't sure where to start. The good news is that some meaningful improvements are simpler than you'd expect. Others take more work, but deliver results that last.
At All Things Good, improving air quality is part of how we think about every whole-home electrification project, because a home that runs cleaner equipment and a tighter envelope is almost always a healthier one, too. Here are five ways to do it.
1. Use Your Exhaust Fans and Range Hood
This is the simplest thing you can do today. Cooking releases combustion byproducts, grease particles, and moisture into your air. Showering and bathing add humidity and can contribute to mold growth over time. Your range hood and bathroom exhaust fans exist to move those pollutants directly out of your home.
The habit is straightforward: run your range hood every time you cook, and run your bathroom fan during and for at least 15 to 20 minutes after every shower. If your fans are older or underpowered, it may be worth having them evaluated.
2. Seal Your Building Envelope
Your home's envelope is the boundary between conditioned indoor air and the outside. When that boundary has gaps and air leaks, your home pulls in whatever is outside: pollen, dust, humidity, vehicle exhaust, and other pollutants you can't control. Sealing those leaks gives you more control over what enters your home.
Air sealing is also the foundation for almost every other IAQ improvement. A leaky home makes it harder for ventilation systems, dehumidifiers, and filtration equipment to do their jobs effectively. A qualified contractor can identify where your home is leaking and address it as part of a broader improvement plan.
Insulation and air sealing is one of the services we often bundle with heat pump installations at All Things Good. When we identify envelope issues during our assessment, we can address them as part of the same project, so the new system you're getting is actually set up to perform the way it should from day one.
Common air leakage areas include:
- Gaps around plumbing and electrical penetrations
- Attic hatches and rim joists
- Recessed lighting and duct connections
3. Make Sure Your Heating and Cooling System Is Working for You, Not Against You
Your heating and cooling system moves air through your home all day. If it's not maintained or properly set up, it can circulate dust, allergens, and other particles rather than filtering them out.
A few things make a big difference here. Changing your air filter on a regular schedule keeps your system from pushing dirty air back into your living spaces. Beyond that, a system that's properly sized and maintained does a better job of managing both temperature and humidity, which directly affects air quality. If your system is short-cycling, running constantly, or struggling to keep up, it's worth having a professional take a look.
We exclusively install Mitsubishi Electric equipment, which is known for precise, variable-capacity performance that maintains consistent temperatures and humidity levels rather than blasting on and off all day. As a BPI Gold Star Contractor, we also bring a building science lens to every system we design, so what we install is matched to what your home actually needs.
4. Control Moisture With a Dehumidifier
Excess humidity creates conditions where mold, mildew, and dust mites thrive. If your home feels muggy, smells musty, or has visible moisture on windows and surfaces, your indoor humidity levels are likely too high.
A dedicated dehumidifier can bring those levels down to a healthier range. That said, a dehumidifier works best when the building envelope has been addressed first. If humid outdoor air is flowing freely into your home through gaps and leaks, the dehumidifier will run almost continuously trying to keep up. Sealing the envelope and adding mechanical dehumidification together is a more effective approach than either one alone.
5. Bring in Fresh Air the Right Way
A tightly sealed home is better for air quality in most respects, but it does reduce the natural exchange of fresh air. Mechanical ventilation systems address this by bringing in a controlled amount of outdoor air while managing temperature and humidity in the process.
Energy recovery ventilators and heat recovery ventilators are the most common solutions. They pull fresh air in and exhaust stale air out, recovering most of the energy in the process so your heating and cooling system doesn't have to work harder. The right system and setup depends on your home's size, how it's built, and how it's used.
How All Things Good Can Help Improve Your Indoor Air Quality
Improving the air in your home doesn't require doing everything at once. But it does benefit from understanding which problems apply to your home and in what order to address them. All Things Good works with homeowners across Alameda and Contra Costa Counties, using our whole-home expertise to assess what's actually going on and recommend solutions that fit the home.
We've completed more than 1,200 projects across the area, and as both a Mitsubishi Electric Diamond Contractor and a BPI Gold Star Contractor, we bring real credentials to every assessment we do. Our process is designed to be simple and actionable: we show up, look at the full picture, and give you a clear path forward.
If you're concerned about your home's air quality and want a clear picture of your options, we’re ready to help.