Dust contamination-
Fine particles
Dust generated during renovation or disturbance of older materials, where asbestos, lead, or mold spores may be present, can spread via airflow and resuspension. Puritas investigates likely sources and pathways and delivers clear next steps.
Dust contamination-
Fine particles
Dust generated during renovation or disturbance of older materials, where asbestos, lead, or mold spores may be present, can spread via airflow and resuspension. Puritas investigates likely sources and pathways and delivers clear next steps.
Renovations
Demolition, drywall, construction dust.
Asbestos & Lead (Legacy Materials)
Asbestos-containing materials, lead-based paint/dust.
Industrial
Nearby factories, manufacturers, toxic emissions.
Mold
Dampness, water leaks, fungal growth.
Pollution
Traffic emissions, smog, chemical pollutants.
Environmental
Pollen,outdoor dust, soil particles.
Common factors
Dust and fine particles can come from renovations, legacy materials, outdoor air, and everyday activities; identifying and eliminating the source helps reduce exposure and protect occupant health.
Renovation
Demolition, drywall, construction dust.
Asbestos & Lead (Legacy Materials)
Asbestos-containing materials, lead-based paint/dust.
Industrial
Nearby factories, manufacturers, toxic emissions.
Mold
Dampness, water leaks, fungal growth.
Pollution
Traffic emissions, smog, chemical pollutants.
Environmental
Pollen,outdoor dust, soil particles.
Common leads
Dust and fine particles can come from renovations, legacy materials, outdoor air, and everyday activities; identifying and eliminating the source reduces exposure and protects occupant health.
What we investigate
We investigate dust and fine particles by combining building context and targeted checks to identify likely sources and pathways, then deliver a clear, evidence-based summary with practical next steps to reduce exposure.
Building age & legacy materials
Year of built, past renovations, and locations where asbestos-containing materials or lead paint are more potentially present (insulation, textured finishes, old flooring/adhesives, window and trim paint)..
Renovation profile
Nature of the renovation, which materials were cut/sanded/demolished, how long the work lasted, and whether dust generation was continuous or episodic.
Controls during work
Whether the area was isolated, dust management, negative pressure or air scrubbers were used, HEPA vacuuming/cleanup was done, and how waste and clothing were handled between zones.
Air pathways and HVAC
Air movement and exhaust performance in bathrooms, kitchen, basement, and problem rooms,
Particle conditions and reservoirs
where settled dust is accumulating and resuspending (floors, ledges, carpets, upholstery), visible tracking patterns, and whether moisture is present that could also support mold fragments/spores.
What to expect: Typical visit 60–120 min • Verbal or written report • Prioritized recommendations
What we investigate
We investigate dust and fine particles with targeted checks to identify sources and pathways, then deliver clear next steps to reduce exposure.
Building age & legacy materials
Year of built, past renovations, and locations where asbestos-containing materials or lead paint are potentially present.
Renovation profile
Which materials were implicated during renovation and whether dust generation was continuous or episodic.
Controls during work
Was the area was isolated, dust management, negative pressure or air scrubbers were used, HEPA vacuuming/cleanup was done.
Air pathways and HVAC
How particles moves through the space, filter type and fit, duct condition, and whether the system ran during work.
Particle conditions and reservoirs
Where settled dust is accumulating and resuspending (floors, ledges, carpets, upholstery), visible tracking patterns.
What to expect: Typical visit 60–120 min • Verbal or written report • Prioritized recommendations
FAQ - Dust / Particles
Contact
Tell us what's going on
We'll reply with next steps and schedule options
Response time
Urgent requests: Same business day
Non-urgent: within 24 hours
Service area
Greater Montreal Region
Information
Description of the situation and
photos if possible
Contact
Tell us what's going on
We'll reply with next steps
and schedule options
Response time
Urgent requests: Same business day
Non-urgent: within 24 hours
Service area
Greater Montreal Region
Information
Description of the situation and photos if possible