Engineered to remove airborne dust, allergens, mould spores, bacteria, viruses, smoke, and household odours with 99.97% HEPA performance — directly from your HVAC return or wall-mount installation.
Proudly made in Canada, the PD-HEPA DM400-VS is a compact, high-performance air cleaner designed to integrate seamlessly into your home. Installed directly on your HVAC return, mounted to a furnace, or configured as a wall-mounted unit, the system diverts a significant portion of household air through a sealed, 3-stage filtration path. With up to 320 CFM of purified airflow and 99.97% HEPA efficiency down to 0.3 microns, your home benefits from dramatically reduced airborne contaminants — dust, pollen, mold, fungi, bacteria, viruses, smoke particles, cooking grease, pet dander, and more.
The high-efficiency MERV 11 prefilter captures dust, lint, and hair before they reach the HEPA media, preserving overall system performance and extending filter life. By removing larger particulates at the first stage, the PD-HEPA DM400-VS ensures smoother airflow and reduces buildup that can strain HVAC systems. This crucial filtration layer helps maintain a cleaner home environment and acts as the foundation for more effective, long-term air purification.
The activated carbon prefilter targets everyday odours and light gases from cooking, pets, household chemicals, and building materials. Its porous carbon structure absorbs VOCs and smells early in the filtration process, preventing them from circulating through your home. This additional protection keeps your living environment fresher and enhances comfort — especially in homes with smokers, pets, or strong cooking odours. It also helps extend the lifespan of the True HEPA filter.
The long-life True HEPA filter is the core of the DM400-VS. Rated at 99.97% efficiency for particles 0.3 microns and larger
, it captures the smallest, most harmful airborne pollutants including bacteria, viruses, fine dust, mold spores, pollen, and smoke. Remarkably, HEPA media becomes even more efficient over time as microscopic particles accumulate. This powerful filtration layer ensures cleaner, healthier indoor air for allergy sufferers, families with respiratory concerns, and homes exposed to wildfire smoke.
![Carbon Prefilter [P4-10]](https://pur.bizbrane.com/wp-content/uploads/2025/09/PUR-Filter-Carbon-P4-10-300x300.png)
P4-10
Replace every 3-6 months
P4-55
Replace every 3-6 months
![HEPA Filter [P4-00]](https://pur.bizbrane.com/wp-content/uploads/2025/09/PUR-Filter-HEPA-P4-00-300x300.png)
P4-00
Replace every 2–4 years
Pesticides
Pesticides, commonly used in agriculture and pest control, often linger in the air as fine particles or vapors and can disrupt neurological and hormonal systems.
Tobacco Smoke
Tobacco smoke contains a mixture of toxic particles and gases that are directly linked to lung cancer, heart disease, and serious respiratory illnesses.
Odours
Odours are airborne molecules from food, waste, or chemicals; while unpleasant, they often signal the presence of harmful VOCs.
Cooking fumes and grease
Cooking fumes and grease are produced during frying or grilling, and prolonged exposure can irritate the lungs and increase respiratory risks.
Human hair
Human hair is a large, visible particle that is generally harmless but may contribute to household dust and debris.
Pollen (large)
Large pollen grains from trees and plants are a common trigger for seasonal allergies and asthma.
Demonstrates how to replace filters on the PD-HEPA DM400 whole-home duct or wall-mount HEPA cleaner.
Explores why the PD-HEPA DM400 offers superior whole-home purification, highlighting performance, reliability, and long-term value.
Discusses indoor air challenges in multi-unit buildings and how PUR systems help combat VOCs, dust, and allergens.
Pollen, pet dander, mold spores, and dust mites are common indoor allergens. Good IAQ helps minimize flare-ups for allergy and sinus sufferers.
High-quality filtration and UV disinfection can reduce airborne pathogens, lowering the risk of colds, flu, and other infectious diseases spreading indoors.
Clean air reduces exposure to dust, allergens, smoke, and fine particulates that can inflame the lungs and aggravate asthma or chronic respiratory conditions.
Indoor environments often contain volatile organic compounds (VOCs) from paints, cleaning products, building materials, and furniture. Purified air removes these invisible but harmful toxins.
Breathing clean, allergen-free air at night supports better oxygen intake, fewer interruptions, and deeper, more restorative sleep.
Increasing wildfire smoke and urban pollution make IAQ more important than ever. A robust purifier helps protect against outdoor contaminants infiltrating indoor spaces.
Explains how electronic air cleaners like the PD-900SC charge and capture airborne particles—making them ideal for industrial and commercial spaces.
Discusses health impacts of wildfire smoke and why advanced air filtration is essential.
All PUR Distribution products come with industry-leading warranties, Canadian regulatory certifications, and quality support from a national service team. We manufacture world-class air purification systems right here in Canada, using only the finest components to ensure performance, reliability, and longevity.
Canadian-Made Excellence
Premium 5 YEAR warranty on this unit
CSA + ULCompliance
Yes. The unit can be duct-mounted, furnace-mounted, or wall-mounted with optional grille sets for clean intake/exhaust airflow.
No. The variable-speed European motor delivers strong airflow without adding measurable static pressure to your HVAC system.
Carbon and MERV 11 prefilters every 3–6 months, and the True HEPA filter every 2–4 years, depending on household conditions.
It delivers up to 39 air changes/day in a 1,500 sq. ft. home and 29 air changes/day in a 2,000 sq. ft. home.
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