Once your CR Box is built, where you place it matters just as much as how well it works. These DIY purifiers are powerful, but their reach is limited to the room they’re in. To get the most out of them, think like airflow—where are people breathing, and where are pollutants likely to collect?

Key placement tips:

• Bedrooms: Always start here—especially for anyone with respiratory conditions or mold sensitivity. Place the CR Box near the bed, but not directly blowing on it. Corner placement works well if airflow is unobstructed.
• Living rooms: Position the unit near common seating areas or in the center of the room, with at least 12 inches of clearance on all sides for proper air intake.
• Kitchens and entryways: These are high-traffic areas where smoke, odors, or outdoor pollutants can accumulate. A CR Box here can act as a shield against cross-contamination.
• Basements or attics: If moisture or mold is a concern, placing a CR Box in these zones can help prevent spores from spreading to the rest of the home.

Remember: The unit filters the air in its immediate space—not the whole house. So prioritize areas where occupants spend the most time and where symptoms are most likely to occur.