Restaurants: What to Ask Before an Air Purifier Vendor Visits

Key takeaways

• Prepare specific questions before the visit rather than relying on the vendor's own pitch
• Ask separately about dining room coverage and kitchen-area supplementary filtration
• Ask directly which certifications the unit holds and request documentation, not just a claim
• Clarify rental terms including servicing and delivery before the visit ends
• Book a follow-up survey if the first visit doesn't answer everything

Why Preparing Questions Ahead Saves Time During the Visit

Restaurant operators rarely have a full hour to give an air purifier vendor between the lunch and dinner rush. A vendor who arrives without a clear brief will often default to a general product pitch, walking through features that may not match your actual dining room and kitchen layout, which eats into the limited time available.

Coming prepared with a short, specific list of questions flips that dynamic. Instead of listening to a generic overview, you steer the conversation toward what actually matters for your space: how the dining room and kitchen area would be sized differently, what certifications back up any claims made, and what a rental agreement would actually include. A fifteen-minute visit with the right questions produces more usable information than an hour without them.

Write the list down beforehand. It's easy to forget half the questions once the conversation starts moving, especially during a busy shift, and it's harder to circle back once the vendor has left with your contact details but no firm answers on file.

Questions About Kitchen Versus Dining Room Coverage

Ask the vendor directly whether they're proposing one unit for the whole restaurant or separate sizing for the dining room and kitchen area. These two zones face different problems: the dining room needs general comfort and odour control sized to its own floor area, while the kitchen area relies first on its exhaust hood, with filtration only supplementing what escapes it. A vendor proposing a single blanket figure without asking about your kitchen's exhaust setup may not be sizing accurately.

Ask what the proposed unit's coverage area is in square metres and how that compares to your actual dining room floor area, not the whole restaurant footprint. If the kitchen area is included, ask specifically what role filtration plays alongside your existing exhaust hood, since it should be supplementary rather than a replacement for extraction at the cooktop. If the vendor can't clearly separate these two answers, that's worth noting before you commit to anything.

Asking Directly About Certifications and Filtration Stages

Don't accept a marketing label like "medical-grade" without asking what specifically backs it. Ask which certifications the unit holds, such as an FDA Class 2 device listing, H13 HEPA filtration, CE or RoHS marking, and request to see documentation rather than taking a verbal claim at face value.

Also ask what filtration stages the unit actually contains: how many layers, whether it includes activated carbon for odour and whether it uses active sterilisation such as UV-C or ion-based technology, or relies purely on passive HEPA trapping. Our own approach to this is set out in how we verify our claims, which is a reasonable standard to hold any supplier to, not just AIRE.

Clarifying Rental Terms Before the Visit Ends

If you're considering renting rather than buying, get specific on what's included before the vendor leaves. Ask whether filters, servicing and delivery are bundled into the rental rate or billed separately, and ask how servicing is scheduled around your operating hours rather than assuming it happens whenever suits the vendor.

Ask what happens if a unit breaks down mid-contract, and what a realistic response process looks like. A vague answer here is worth following up on before signing anything. Compare the answers against our own approach on commercial rental, where servicing and two-way delivery are included in the rate, as a benchmark for what a reasonable proposal should cover.

Booking a Follow-Up Survey if More Detail Is Needed

A quick visit during service hours is useful for a first impression, but it's not always enough to produce an accurate quote, particularly if the kitchen layout or dining room ceiling height needs closer measurement. If the vendor's initial visit leaves gaps, it's reasonable to ask for a proper room-by-room survey at a quieter time, before opening hours or on a day the restaurant is closed for a deep clean.

AIRE offers a free room-by-room Air Report with no upfront cost, which can be scheduled outside your busiest hours to get accurate figures for both the dining room and kitchen area without the time pressure of a walk-through mid-shift. There's no obligation attached to the survey itself, so it's a reasonable step even if you're still comparing several vendors before deciding.

Next step

If a vendor visit during service hours doesn't leave time for proper detail, request a free room-by-room Air Report at a quieter time to get accurate sizing for both your dining room and kitchen area.

Frequently asked

Why does preparing questions ahead of a vendor visit help?

A restaurant only has a short window between service periods for a vendor visit, and arriving with specific questions steers the conversation toward what actually matters for your space rather than a generic product pitch that may not fit your layout.

What questions should cover kitchen versus dining room coverage?

Ask whether the vendor is proposing one unit for the whole restaurant or separate sizing for the dining room and kitchen area, what the coverage area is in square metres, and how filtration in the kitchen relates to your existing exhaust hood.

Should certifications be asked about directly during the visit?

Yes. Ask which specific certifications the unit holds and request documentation rather than accepting a marketing label at face value. Also ask what filtration stages are included and whether the unit uses active sterilisation or passive trapping alone.

Related reading

• How We Verify Our Claims
• Commercial Air Purifier Rental in Singapore