How To Improve Indoor Air Quality in Older Houses
Older homes have so much character. But sometimes, that charm comes with a hidden downside: air quality issues that can impact your family’s health. Think dusty ducts, older ventilation systems, and aging materials.
These are the perfect recipes to make it tough to breathe truly fresh air. But getting cleaner, healthier air in your older home is often easier than you think! Here are a few ways you can improve the indoor air quality in older houses while preserving your home’s historical appeal.
Replace or Upgrade Your HVAC Filters
Think of your HVAC system as the lungs of your home, pumping air into every room. Traditional systems often rely on basic filters that can’t catch smaller pollutants. Switching to HEPA or high-efficiency pleated filters can eliminate 99.97% of particles like dust, pollen, and pet dander.
We recommend changing your filters every 30-60 days during heavy use and checking monthly in milder seasons. For extra protection, add UV lights to your ductwork to tackle bacteria, viruses, and mold spores.
Seal Air Leaks and Cracks
As homes age, gaps can form around windows, doors, and foundations, letting pollutants, allergens, and moisture in while your air conditioning escapes. To check for air leaks, walk through your home and look for drafts and sunlight peeking in.
Add weatherstripping to doors and windows, caulk small cracks, and use foam sealant for bigger gaps, particularly around pipes, cables, and vents. For hidden air leaks, consider hiring a professional energy auditor who can use thermal imaging to pinpoint problem areas and help improve your home’s efficiency.
Install Mechanical Ventilation Systems
Many older homes rely on natural ventilation, which can’t keep up with indoor pollutants from cooking, cleaning, and daily life. Mechanical ventilation, on the other hand, gives you consistent fresh air exchange and filters the incoming air.
Consider exhaust fans in bathrooms and kitchens for targeted moisture and contaminant removal. For a whole-house solution, energy recovery ventilators (ERVs) bring in fresh air while saving heat from the outgoing stale air. If a central system isn’t an option, window or attic fans are a budget-friendly alternative.
Add Natural Air Purification Plants
Plants are like mini air purifiers, naturally cleaning your indoor air by absorbing toxins and releasing oxygen. Easy-care options like snake plants, spider plants, and peace lilies are perfect for any space.
Larger plants such as fiddle leaf figs and rubber trees are great for living rooms, while smaller ones brighten up desks and counters. Grouping plants looks lovely and also creates humid microclimates that are beneficial for you and your green friends!
Address Insulation Gaps
Poor insulation can lead to drafts, temperature swings, and even mold. Luckily, there’s an easy fix! Retrofitting older homes with spray foam insulation is a great way to seal gaps and keep moisture out without tearing down walls.
An airtight barrier keeps your home comfortable and reduces stress on your HVAC system. Also, inspect your attic, basement, and crawl spaces for missing insulation; it can make a significant difference.
Regular Cleaning and Maintenance
Regular cleaning prevents pollutant circulation. Vacuum carpets twice weekly with HEPA filters and mop hard floors with microfiber cloths. Wash bedding weekly in hot water and clean drapes monthly. Have ducts professionally cleaned every 3-5 years. Replace HVAC filters on schedule, clean exhaust fan grilles quarterly, and maintain houseplants to prevent pests.
Creating healthier indoor air quality in your older home protects your family’s well-being while preserving the character you love. Use the tips above to improve the indoor air quality in your older home. This way, you can transform your living space into a cleaner, more comfortable environment for years to come.
