Air Filters York Region

Air quality in York Region

• 400 & 404 corridors
• Highway 407 & Highway 7
• Suburban construction
• Oak Ridges Moraine pollen
• Holland Marsh farm dust
• Wildfire smoke

York Region runs from Steeles Avenue all the way north to Lake Simcoe, and its air changes a lot along the way. The southern municipalities – Vaughan, Markham and Richmond Hill – are crossed by Highways 400, 404, 407 and 427 and the busy Highway 7 corridor. Industrial areas in Concord and along the 400, a major rail yard in Vaughan, and constant commuter traffic all add exhaust and fine road dust, while new downtowns at the Vaughan Metropolitan Centre, Richmond Hill Centre and Markham Centre bring years of high-rise construction.

Across the middle of the region, the Oak Ridges Moraine forms a band of forest, wetland and kettle lakes through King, Richmond Hill, Aurora and Whitchurch-Stouffville. It is one of the region's best natural features, and also a big source of spring tree pollen, summer grasses and late-summer ragweed. Rapid growth in Aurora, Newmarket, East Gwillimbury and Stouffville means new subdivisions and the construction dust that comes with them.

Further north, the Holland Marsh in King Township is one of Ontario's most productive vegetable-growing areas, and its dark, fine soil can blow on dry, windy days. Georgina and the Lake Simcoe shoreline have cottages, older homes and wood-burning stoves that add smoke on cold nights. And like the rest of southern Ontario, York Region has seen several summers of wildfire smoke drifting down from the north. A good pleated filter in your furnace or air handler is the easiest way to keep all of this out of your home.

York Region climate, homes & HVAC systems

York Region is colder and snowier than the Lake Ontario shoreline, and the difference grows the further north you go. Vaughan and Markham have a typical inland GTA climate, while Aurora, Newmarket and the moraine communities see more snow and longer heating seasons, and the Lake Simcoe shore can get lake-effect flurries. Furnaces run from October or November through March or April, and central air carries homes through humid summers.

Housing is overwhelmingly detached and semi-detached suburban homes built from the 1970s onward, many with high-efficiency furnaces and 4- or 5-inch media cabinets; larger homes in Vaughan, Richmond Hill and King often have two furnaces. Older homes in Unionville, Newmarket's Main Street area and Aurora's heritage streets may use 1-inch filters or odd sizes. Condo towers along Yonge Street and Highway 7 use fan coils and heat pumps, and rural King, Whitchurch-Stouffville and Georgina still have propane and oil furnaces, wood stoves and seasonal cottages.

Which MERV rating is right for your York Region home?

MERV (Minimum Efficiency Reporting Value) measures how well a filter captures particles of different sizes under the ASHRAE 52.2 test standard. Higher numbers catch smaller particles. Most residential furnaces in Canada run well on MERV 8 to MERV 13 – here is how to choose:

Not sure? Read our complete MERV rating guide. If you are moving up to MERV 13 on an older furnace, a deeper 2-inch or 4-inch filter keeps airflow healthy.

Popular furnace filter sizes in York Region

These sizes cover most York Region furnaces. Two-furnace homes often use two different sizes, and condo fan coils, older farmhouses and cottages may need special sizes – which we make to order.

How often to change your furnace filter in York Region

Filter depth	Typical home	Pets, allergies or smoke
1-inch	Every 1–3 months	Every 30–45 days
2-inch	Every 3–4 months	Every 2 months
4-inch	Every 6–9 months	Every 4–6 months
5-inch	Every 9–12 months	Every 6 months

Across York Region, check filters monthly during heating and cooling peaks, and more often if you live beside new construction, a farm field or a busy highway. See the full filter changing guide.

Air filters for York Region businesses & property managers

York Region is one of Ontario's fastest-growing economic centres, with tech and finance offices along the Highway 7 and 404 corridors, manufacturing and logistics in Vaughan, Markham and Newmarket, hospitals including Southlake, Mackenzie Health and Markham Stouffville, colleges, school boards, long-term care homes and thousands of plazas, restaurants and places of worship.

We supply York Region property managers, facility teams and HVAC contractors with pleated, pocket, rigid cell, V-bank and wire panel filters in bulk. Most of the region is inside our free local delivery zone, and recurring orders keep the right sizes on site for every change cycle.

• Pleated filters in 1", 2" and 4" depths, MERV 8–13
• Pocket (bag) filters, rigid cell and V-bank filters for rooftop units and air handlers
• Wire panel, HEPA, carbon and media pads & rolls
• Volume pricing, scheduled deliveries and NET terms for approved business accounts

Shipping & delivery to York Region

Free local delivery covers addresses within 60 km of our Brampton facility, which includes most of York Region. Choose “Free GTA Delivery” at checkout – if your address is outside the zone, Ontario's $25 flat rate applies (free on orders over $2,500).

Standard sizes are usually made and shipped within 1–2 weeks; custom sizes can take up to 3 weeks. Prefer to collect? Free pickup is available Monday to Friday, 7:00 AM – 4:30 PM at 15 Melanie Drive, Brampton. Full details are on our shipping & returns page.

Cities and towns we serve in York Region

Areas we deliver to across York Region

Vaughan · Markham · Richmond Hill · Newmarket · Aurora · King City · Nobleton · Schomberg · Stouffville · Ballantrae · Holland Landing · Queensville · Sharon · Mount Albert · Keswick · Sutton · Pefferlaw · Thornhill · Woodbridge · Unionville

Nearby location pages: Ontario, Peel Region, Durham Region, Halton Region, Toronto, Hamilton, Kitchener-Waterloo, London, Barrie, Windsor, Ottawa, Guelph, Kingston, St. Catharines, Sudbury. Or see all locations we deliver to.

York Region air filter FAQ

Helpful air quality guides