• MERV 8 (Good): Dust, lint, basic protection; minimal airflow impact; great for most households.

• MERV 11–12 (Better): Smaller particles, pet dander and pollen; a solid all-around upgrade.

• MERV 13 (Best for homes): Finer particles and allergens; pair with variable-speed/ECM blowers for best results.

Tip: Higher MERV = finer filtration and more airflow resistance. If your system struggles with airflow, consider MERV 8–11 or upgrade to a 4–5″ media cabinet that provides both high filtration and low pressure drop.

• Pleated 1″ & 2″ filters: Affordable, effective dust/allergen control.

• 4–5″ media filters (cabinet): High surface area, lower static pressure at higher MERV; ideal with high-efficiency furnaces.

• Washable mesh (mini-split): Rinse-clean filters for ductless systems (capture dust; not a substitute for high-MERV media).

• Odour/Carbon options: Helps reduce odours and some VOCs in kitchens, pet areas, or basements.

• 1″ pleated: Every 60–90 days (monthly with pets, smokers, construction, or allergies).

• 2″ pleated: Every 90–120 days.

• 4–5″ media: Every 6–12 months (inspect at 6 months).

• Mini-split washable: Clean monthly during heavy use, replace as needed.

Always inspect monthly. If the filter looks grey or shows dust cake, replace/clean sooner to protect your blower and coil.

• Power off the furnace/air handler before replacing.

• Follow the airflow arrow on the filter frame (toward the furnace).

• Ensure a snug fit—no gaps where air can bypass the filter.

• Keep return grilles clear (no furniture, drapes, or boxes blocking airflow).

• Upgrading to MERV 13? Make sure your system can handle it or consider a media cabinet for lower pressure drop.

• Auto-Ship Subscriptions: Choose your size and interval—filters arrive when it’s time to change.

• Bulk Packs (4, 6, 12): Stock up and save for the season.

• Fast Delivery or Pickup: Next-day GTA delivery on common sizes; free local pickup available.

• Reminders: We’ll email/text your change dates so you never forget.

• Media cabinets (4–5″ filters) retrofit to most furnaces for better filtration with lower resistance.

• HEPA add-on systems for ultra-fine particle capture in homes with allergies/sensitivities.

• UV-C & coil purification to reduce biofilm on the evaporator coil.

• HRV/ERV ventilation to bring in fresh, filtered outdoor air and reduce stuffiness.

• Get a Furnace

• Furnace Repair

• Furnace Rebates & Incentives

• Furnace Buyer’s Guide

• Buy Filter

What’s the difference between MERV, MPR, and FPR?
MERV is the industry standard. MPR (3M) and FPR (retail scales) are brand/store ratings. We convert if needed—tell us your current filter’s label.

Can I jump straight to MERV 13?
Yes—if your system supports the airflow. If airflow or noise worsens, consider MERV 11–12 or upgrade to a 4–5″ media cabinet for high MERV with low pressure drop.

Do thicker filters last longer?
Usually. 4–5″ media filters have more surface area, so they capture more dust at a lower pressure drop and often last 6–12 months.

How do mini-split filters work?
Most are washable mesh that capture larger dust. Clean monthly in peak season. For finer filtration, dedicated mini-split IAQ accessories may be available.

I can’t find my size—can you source it?
Yes. Many non-standard sizes are available by special order. We’ll help you measure and order the correct dimension.

Will a better filter fix dust in my home?
It helps, but also check leaky ducts, vacuum with a HEPA bag, and maintain humidity/ventilation. We can assess your system.