1. Confirm that the product is authorized
Health Canada regulates surface disinfectants and sanitizers as biocides. The framework changed on May 31, 2025, and previously authorized products have transition periods. An authorized product carries an eight-digit identification number; during the transition, many familiar labels still show this number after the letters DIN.
Ignore vague phrases such as professional strength. The number connects the product to its authorization and the claims Health Canada has accepted.
2. Match the use area and surface
A product can be authorized for domestic, commercial, institutional, hospital, food-premises or other settings. Those uses are not interchangeable. Confirm that the label covers both your setting and the surface type—such as sealed hard, non-porous counters—before application.
Electronics, natural stone, unfinished wood, fabrics and specialty finishes deserve extra caution. The disinfectant label and the surface manufacturer’s care instructions both matter.
3. Read the claim, not just the word ‘disinfectant’
Labels identify the classes or specific micro-organisms against which the product has supporting evidence. A broad statement on the front panel does not mean the product is appropriate for every organism or situation.
If a specific concern is driving the work, match that concern to an authorized claim instead of assuming all disinfectants perform identically.
4. Find the dilution and application rate
Ready-to-use products and concentrates are different workflows. A concentrate may specify a metric quantity per litre or a ratio. Guessing a stronger mixture can damage surfaces, increase exposure and depart from the authorized directions without improving the result.
The label may also specify how much product to apply—for example, enough to leave the surface evenly and thoroughly wet. A wipe that has dried out or a mist that never covers the full area is not following that direction.
5. Time the wet contact period
Contact time is the period the target surface must remain exposed to the wet product. It is tied to efficacy testing. Different claims on one label may carry different times, so use the time that matches the intended application.
Build this into the workflow: apply, note the time, reapply if the label requires it when evaporation is too fast, and do not wipe dry early merely to make the area look complete.
Contact time is not the same as total labour time. It is the product’s required wet exposure time on the target surface.
6. Finish with safety, rinse and storage directions
Read warnings, first-aid measures, required gloves or eye protection, storage limits and disposal instructions. Food-contact surfaces and objects mouthed by young children may require a potable-water rinse after the stated contact time.
Never mix products unless the labels explicitly say the combination is safe. Bleach mixed with acids, ammonia or other cleaners can release dangerous gases.
Further reading
Guidance can change. Check the current product label and the latest requirements that apply to your workplace.
This article provides general information for Canadian workplaces and properties. It does not replace a product label, safety data sheet, workplace procedure, public-health direction or professional assessment.