How Vents Ductless ERVs and HRVs can help Improve Indoor Air Quality During Wildfire Season

How Vents Ductless ERVs and HRVs can help Improve Indoor Air Quality During Wildfire Season

Each summer, millions of homeowners across North America brace themselves for the return of wildfire season. While wildfires present an immediate danger to affected communities, one of the less visible - but just as serious – threats is poor indoor air quality caused by wildfire smoke. The tiny particulate matter (PM2.5) in wildfire smoke can travel hundreds of miles and infiltrate homes, putting health at risk even in areas far from the flames.

For homeowners looking to protect their families, one of the best defences is improving indoor ventilation and by default Indoor Air Quality (or IAQ for short) - and Vents Ductless Energy Recovery Ventilators (ERVs) and Ductless Heat Recovery Ventilators (HRVs) are designed to do exactly that.

In this "Learn with Vents-US" post, we’ll explore how these systems work, why ductless ERVs and HRVs are a smart investment during wildfire season, and how Vents Ductless ERV systems in particular offer a practical, efficient solution for modern homes, retrofits and multi family dwellings.

Understanding the Threat: Wildfire Smoke and Indoor Air Pollution

Wildfire smoke is a complex mix of gases and fine particles produced when wood and other organic materials burn. The biggest threat to human health from wildfire smoke is the fine particulate matter, known as PM2.5, which can enter deep into the lungs and even the bloodstream. Exposure to PM2.5 has been linked to a wide range of health issues including:

  • Respiratory irritation and asthma flare-ups
  • Cardiovascular issues
  • Headaches and fatigue
  • Worsening of chronic health conditions

During wildfires, outdoor air quality can become dangerously unhealthy, and even sealed homes are not immune. According to the EPA, indoor levels of pollutants can become up to 5 times higher than outside if proper ventilation is not maintained.

Why Traditional HVAC Systems Fall Short

Most traditional HVAC systems – especially those without fresh air intake or high-grade filtration – simply recirculate existing indoor air. They may keep your home cool during the summer, but they don’t address air exchange or purification, which is critical during high-smoke periods.

Window-mounted ACs and portable air conditioners often bring in unfiltered outside air, while keeping windows closed means the buildup of carbon dioxide, humidity, and indoor pollutants – leading to stuffy, stale, and potentially unhealthy environments.

How Ductless ERVs and HRVs Improve Indoor Air Quality

ERVs and HRVs are systems designed to replace stale indoor air with fresh outdoor air, while capturing and reusing energy in the process. Here's how they help during wildfire season:

1. Continuous Air Exchange with Heat and Moisture Recovery

  • ERVs exchange stale indoor air with filtered fresh outdoor air, while also balancing humidity levels. This is especially useful during summer months when homes are sealed against the heat.
  • HRVs perform a similar function but are better suited to colder, drier climates where moisture recovery isn’t as necessary.


    2. Superior Filtration

    Modern ductless ERVs and HRVs from Vents-US include high-efficiency filters that can help block particulate matter, including PM2.5. Some models are even compatible with MERV-13 or higher filters, which are recommended during extreme smoke events.

    3. Sealed System Means Less Outdoor Contamination

    Unlike open windows or poorly sealed HVAC vents, Vents ductless systems are tightly sealed to the wall. This minimizes any unfiltered outdoor air seeping in.

    4. Ductless = Ideal for Retrofits and Upgrades

    No ducts? No problem. Vents ductless units like the TwinFresh Expert or TwinFresh Comfo can be installed in individual rooms – ideal for older homes, condos, apartments, and even tiny homes without central HVAC.

    What Sets Vents Ductless ERVs and HRVs Apart

    Vents has long been a trusted name in ventilation technology, and their line of ductless ERVs and HRVs offers key advantages that make them particularly suited for wildfire season:

    Smart Operation and WiFi Control

    Products like the TwinFresh Expert RW1-50-2 WiFi allow homeowners to monitor and control ventilation remotely, helping you shut down intake during extreme smoke alerts and resume fresh air ventilation when levels improve.

    Energy Efficiency

    Thanks to advanced energy recovery cores, Vents ERVs and HRVs preserve up to 90% of the heat energy from outgoing air – making them eco-friendly and cost-effective even when running 24/7.

    Quiet, Low-Profile Operation

    With whisper-quiet DC motors, Vents units maintain comfort without contributing to noise pollution – ideal for bedrooms, offices, and nurseries.

    Quick, Non-Invasive Installation

    Since no ductwork is needed, Vents ductless systems can be installed with a simple wall core cut, often in under two hours. No need for major renovations or added HVAC infrastructure.

    Best Practices for Using Ductless ERVs/HRVs During Wildfire Season

    To get the most out of your system during smoke events:

    ✅ Install High-Efficiency Filters

    Choose models that allow upgraded filters like MERV 13 or install an inline pre-filter. These help block PM2.5 and VOCs. (lower filtration MERV units will also help)

    ✅ Monitor Outdoor Air Quality

    Use an app like AirNow or PurpleAir to track smoke levels. You can pause your ERV intake temporarily if outside air quality becomes hazardous.

    ✅ Pair with an Air Purifier

    For optimal results, use a HEPA air purifier indoors alongside your ERV. The ERV brings in filtered fresh air and removes stale air, while the purifier captures lingering particulates.

    ✅ Regular Maintenance

    Clean or replace filters as needed, especially during high smoke periods. A clogged filter can reduce effectiveness and let contaminants through.

    Who Should Consider a Vents Ductless ERV or HRV?

    If you live in a wildfire-prone region, or even if you’ve noticed hazy skies in the summer months, a ductless ERV or HRV from Vents is a valuable investment in your health and comfort. These systems are especially ideal for:

    • Homes without existing ductwork

    • Urban apartments with poor airflow

    • Retrofits and remodels

    • Bedrooms, nurseries, and home offices

    • Tiny homes or mobile units

    Protect Your Home This Wildfire Season with Vents

    Wildfire smoke is no longer an occasional nuisance—it’s a seasonal reality. Protecting your family means thinking ahead and investing in effective indoor air quality solutions.

    Vents ductless ERVs and HRVs provide a powerful, energy-efficient, and easy-to-install solution to improve your home’s ventilation – while helping filter out harmful pollutants and smoke particles.

    Ready to breathe easier this summer?
    Explore our full line of ductless ERVs and HRVs to find the right fit for your home and lifestyle.
    Because clean air shouldn’t be a luxury – it should be a guarantee.

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