SHIELDGUARD HEPA+ UV-C Air Purifier
Three Products in One: HEPA+ Air Filter · 265 nm Pathogen Inactivator · UV Sanitizing Chamber
SHIELDGUARD INC introduces the ultimate air filter designed to safeguard your home and family across Canada and the United States. This advanced system utilizes state-of-the-art HEPA technology, capturing microscopic particles from air drawn through floor vents — creating an airtight, positive-pressure environment.
CAD $1,499 — Awaiting final certification and registration
Contact to OrderHEPA+ Filtration
99%+ at 0.3 µm MPPS — medical-grade performance for residential use.
265 nm UV-C
Fully enclosed pathogen inactivation — zero UV leakage, safe for families.
Sanitizing Chamber
Sanitize phones, masks, keys, and more in 2+ minutes.
Room Isolation — Closed Circuit + Positive Pressure
Inside a room or apartment, you open one inlet and seal all others. Air is drawn from that inlet, passes through every stage of the device (pre-filter → charcoal → HEPA H14 → UV chamber → fan → MERV17 barrier), and clean air is released back into the same room through the air outlet. With the door closed, this creates positive pressure that blocks contaminated air from other rooms, floors, or the rest of the building.
This is fundamentally different from portable purifiers — they work like "drying ice": they collect room air, filter it, and release it, but contaminated air from other rooms and outdoors keeps entering through HVAC dynamics. In senior care homes, a sick resident on floor 2 can have their air sucked by the building system and spread to other floors. SHIELDGUARD was developed during COVID precisely to isolate a room from the rest of the building.
Unlike portable purifiers that pull room air, filter it, and release it back while contaminated air from other rooms and outdoors keeps entering through HVAC, ShieldGuard seals all inlets except one, processes air through every stage of the block diagram (pre-filter → charcoal → HEPA H14 → UV chamber → fan → MERV17), and returns clean air to the same room — creating positive pressure at the closed door that blocks pathogens from the rest of the building.
Internal Block Diagram — Air Processing Stages
Based on the SHIELDGUARD engineering block diagram. Air enters through a single room inlet, passes through every stage, and exits as clean, UV-treated air back into the same room.
❌ Traditional Purifiers
- Open-loop: pull room air, filter, blow back
- Fresh contaminated air keeps entering
- Only 20–40% of room air actually cleaned
- Cannot prevent external pollutant infiltration
✅ SHIELDGUARD Filter
- Captures air at floor vents / HVAC returns
- Filters before distribution through ductwork
- Positive pressure pushes contaminants out
- Progressive whole-home filtered circulation
Filtration Efficiency — Independent Test Results
| Particle Size | Inlet | Outlet | Reduction |
|---|---|---|---|
| 10 µm | 0 | 0 | 100% |
| 5 µm | 1 | 0 | 100% |
| 3 µm | 3 | 0 | 100% |
| 1 µm | 36 | 0 | 100% |
| 0.5 µm | 1,107 | 3 | ~99.73% |
| 0.3 µm | 16,488 | 92 | ~99.44% |
Filter Replacement: 12 months normal use · 6 months heavy use (>12 hrs/day)
UV-C Pathogen Inactivator & Sanitizing Chamber
Filtered air passes through a controlled 265 nm UV-C dose. The upper chamber also sanitizes personal items — minimum 2 minutes for effective dosage.
Device Overview, Set-Up & Use
Specifications & Certifications
Full Technical Specifications
- Model: HEPA UV-C Air Filter
- Filter Cartridge Life: 12 months
- UV-C Emitter Life: 10,000 hours
- Dimensions: 17.3" L × 11.9" W × 19.5" H (43.94 × 30.23 × 49.53 cm)
- Weight: 1,000 g
- Operating: 5°C–40°C / 20–90% humidity
- Noise: Off 37.9 dB · High 51.0 dB (39.5 dB at 1 m)
- Electrical: 120V (12V option); 0.384 A / 44 W
- Air Flow: High 478.66 m³/h · Mid 233.49 m³/h
- EMI/EMC: RF 0.3 mW/m² · EF 3 V/m · EMF 1.2 mG
Who Needs ShieldGuard?
Engineered during COVID for one precise mission: isolate a room from the rest of the building.
Senior Care Homes
Isolate a sick resident's room from the rest of the building. During COVID, shared HVAC systems spread contaminated air across floors — sometimes 5+ deaths per week in a single facility across North America.
Apartments & Condos
One inlet open, others sealed, door closed. Clean air stays in YOUR unit — droplets from a neighbour or another floor cannot infiltrate.
Families with Vulnerable Members
Protect seniors, immunocompromised individuals, and allergy sufferers by creating a filtered, UV-C treated air barrier in a dedicated room.
Wildfire Smoke
Closed circuit + positive pressure reduces infiltration of fine particulates (PM2.5) from outdoors — critical in Canada and the western United States.
Allergy & Asthma
HEPA+ filtration at 0.3 µm MPPS captures pollen, mold spores, and allergens that trigger attacks.
Bedroom / Home Office
Turn one room into a controlled-air zone — ideal for remote work, post-surgical recovery, or restorative sleep.
Protect Your Family Today
Designed in Ancaster, Ontario — serving Canada & the United States.