CR Boxes are an incredibly effective tool, but they’re most powerful when used as part of a comprehensive indoor air quality strategy.

Here’s how to create a clean air ecosystem:

• Pair filtration with dehumidification: Keeping humidity below 50% helps prevent mold growth and makes the filters work more efficiently.
• Continue source control and cleaning routines: Filtration captures airborne particles, but you’ll also want to stay on top of surface dust, leaks, and clutter that can trap contaminants.
• Consider running your central HVAC fan on “on” or “circulate” mode if it’s equipped with a MERV 13 filter—this can help with whole-home coverage alongside your CR Boxes.
• Use air quality monitors to track changes and fine-tune your strategy. Many affordable monitors can show when pollutant levels spike, helping you decide when to increase fan speed or build another unit.

When used strategically, CR Boxes offer medical-grade particle filtration at a fraction of the cost—and they’re one of the most empowering DIY tools available for creating safer indoor spaces.