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PM2.5 Protection

PM2.5 Protection

Seasonal pollution and urban traffic make filtered fresh air essential. Ventpro designs ventilation with multi-stage filtration so outdoor air is cleaned before it reaches occupied spaces — without relying on closed windows alone.

Common Problems

Why closing the windows is not enough

Buildings still need fresh air during pollution events — but that air must be filtered.

Unfiltered infiltration

Even sealed buildings leak. Without a controlled, filtered supply path, particulate still enters while indoor CO2 rises.

Burning-season spikes

Seasonal PM2.5 events demand filtration stages selected for fine particulate, not comfort recirculation alone.

Urban traffic pollution

City sites need intake placement and filtration that account for roadside particulate and continuous occupancy.

The Ventpro Approach

Filtered fresh air as the default path

We size multi-stage filtration on the outdoor-air intake and pair it with balanced ventilation so buildings can stay closed to pollution while still receiving continuous fresh air.

  • Multi-stage filtration on fresh-air intakes
  • Balanced supply and extract with energy recovery
  • Strategies for pollution-season operation

Watch

Related videos

Video explainers for this solution can be featured here once available.

Video content pendingPM2.5 and homes

Video content pendingFiltration stages explained

Video content pendingOperating during haze

Questions

Frequently asked questions

Common questions about PM2.5 protection and filtered ventilation.

Can ventilation run during heavy haze?
Yes. Outdoor air is drawn through specified filtration stages so you maintain fresh-air exchange without opening windows into polluted outdoor air.
Is a portable air purifier enough?
Portables can help recirculate room air, but they do not replace a filtered outdoor-air path that dilutes CO2 and supplies fresh air to the whole building.
What filtration level do you recommend?
Stages are selected for the site and building type — from ePM1 fine-dust filters upward based on outdoor conditions and project requirements.

Protect indoor air during pollution season

Our team can specify filtration and ventilation for your home or building.