What Is Air Changes Per Hour (ACH) and Why Does It Matter in Construction?

When it comes to indoor air quality, one term you’ll often hear is Air Changes Per Hour (ACH). While it may sound technical, ACH is simply a way to measure how many times the air within a space is replaced or filtered in one hour. For example, if a room has an ACH of 6, […]
Our Veterans Deserve Clean Air — It’s Time VFWs Across America Get Serious About Smoke Filtration

Veterans of Foreign Wars posts are more than just buildings — they’re living community centers where service members gather to share stories, support one another, and keep the bonds of service alive. They deserve to be places of comfort and dignity. Yet for the thousands of VFW posts across the country that allow indoor smoking, […]
Breathe Easy This May: Celebrating Clean Air Month with MatrixAir

May is here, and along with warmer days and blooming flowers, it brings something easy to overlook: National Clean Air Month. It’s a reminder that the air we breathe every day has a direct impact on our health, comfort, and productivity. And while most people think about outdoor air quality, the truth is we spend […]
Common Mistakes Contractors Make When Designing for Indoor Smoking Spaces

Designing spaces where indoor smoking is permitted—like American Legions, VFWs, and bowling alleys—comes with a unique set of air quality challenges. Too often, contractors rely on standard HVAC approaches that simply aren’t built to handle smoke-heavy environments. The result? Lingering odors, visible haze, and uncomfortable spaces for patrons and staff. One of the most common […]
Common Mistakes Contractors Make When Designing for Indoor Smoking Spaces

Designing spaces where indoor smoking is permitted—like American Legions, VFWs, and bowling alleys—comes with a unique set of air quality challenges. Too often, contractors rely on standard HVAC approaches that simply aren’t built to handle smoke-heavy environments. The result? Lingering odors, visible haze, and uncomfortable spaces for patrons and staff. One of the most common […]
Designing Airflow for Cigar Lounges and Smoke Shops: A Practical Guide to Better Indoor Air Quality

Cigar lounges and smoke shops face a unique indoor air challenge. Unlike large entertainment venues, these spaces are often smaller, more intimate, and densely occupied — which means airflow strategy matters just as much as filtration power. Designing effective air management in these environments starts with understanding how smoke behaves indoors. Airflow Direction Matters More […]
Indoor Air Quality Guide for Commercial & Entertainment

When business owners talk about “clean air,” they often mean “it doesn’t smell.” But true good indoor air quality (IAQ) goes far beyond odor control. For commercial and entertainment spaces — from American Legions and VFW halls to bowling alleys and casinos — air quality directly impacts comfort, equipment performance, and customer experience. So what […]
Casino Air Quality Myths—Busted

Casinos that allow indoor smoking face a unique set of air quality challenges. Over time, a few common myths tend to shape how these spaces approach smoke control—and many of them do more harm than good. Let’s clear up some of the most persistent misconceptions. Myth #1: “High ceilings take care of smoke.” High ceilings […]
Why Construction Dust Is More Than a Cleanup Problem

When people think about construction dust, they often picture the mess left behind at the end of the day—powdery floors, coated surfaces, and extra cleanup time. But during active construction or renovation, dust is more than a housekeeping issue. It’s an ongoing indoor air quality challenge that can affect workers, timelines, and the spaces being […]
Designing Air Filtration for Indoor Smoking Venues: Ducted or Ceiling-Mounted—Which Is Right?

Indoor smoking venues present air quality challenges that standard HVAC systems aren’t built to handle alone. Cigarette and cigar smoke release fine particles, gases, and odor molecules that can linger, especially during busy events or colder months when doors stay closed. When planning an air filtration solution, venue owners often ask whether a ducted system or […]
Creating a Cleaner, More Comfortable Environment for VFWs

Veterans of Foreign Wars (VFW) posts are more than buildings—they’re community hubs. They’re places where members gather to share stories, host events, support each other, and welcome guests. But for many VFWs that allow indoor smoking, maintaining a clean, comfortable environment can be an ongoing challenge. Smoke can linger in the air, cling to furnishings, […]
Seasonal Smoke Control: Why Winter Is the Worst Time for Indoor Air—And How to Prepare

When temperatures drop, indoor spaces naturally become tighter. Doors stay closed, windows stay sealed, and ventilation rates drop as facilities work overtime to keep heat inside. For smoking-friendly environments—such as VFW halls, cigar lounges, bowling alleys, and bars—this seasonal shift creates the perfect storm for heavy, lingering smoke. Winter is the time when smoke builds […]