A collapsible, travel-ready universal vent filter for mold and allergen protection in residential and temporary-stay HVAC systems.
Residential and temporary-stay HVAC vents accumulate mold, dust, and biofilm inside ductwork. Occupants with respiratory issues, sensory sensitivities, or immune concerns are forced to choose between comfort (running AC) and health (breathing clean air).
Existing solutions are flat adhesive filter sheets that don't fit ceiling vents, fall off under gravity, choke airflow, and aren't designed for travel.
A flexible frame with embedded magnets and friction-grip edges that snaps onto any standard residential or hotel vent register — ceiling, wall, or floor. Replaceable antimicrobial filter inserts (MERV 8-11) capture mold spores and particulates without choking the AC system. A color-change saturation indicator tells you when to swap.
The frame collapses flat for packing. The filter inserts are replaceable. The frame is reusable.
| VentMask | AllerTech VentGuard | SmellRid | VentShield | |
|---|---|---|---|---|
| Form factor | Flat sheet | Flat sheet | Flat sheet | Shaped frame, snap-on |
| Ceiling mount | Adhesive (falls off) | Velcro strips | Adhesive | Magnets + friction grip |
| Travel-ready | Fragile flat | No | No | Collapsible, packable |
| Mold-specific | Generic | Generic | Odor-focused | Antimicrobial media |
| Replacement signal | None | None | None | Color-change indicator |
| Reusable frame | No | No | No | Yes |
- Small (6"x10") — standard supply vents
- Medium (6"x12") — common rectangular
- Large (10"x10" / 12"x12") — square ceiling registers
Phase: Project scaffold / pre-prototype