A Procurement Officer's Checklist for Dental Clinic Air Purifiers

Key takeaways

• Specify required CADR per room, not a single figure for the whole clinic
• Ask for the underlying certification documents, not just the words medical-grade
• Waiting areas and procedure rooms need different air changes per hour targets
• Compare rental with filters and servicing included against outright purchase before signing off
• A free site survey turns guesswork into a specification a supplier can be held to

What a Purchase Order Specification Needs to Cover

A multi-chair dental centre is not one air quality problem, it is several rooms with different requirements. A written specification should break the clinic into zones: the waiting area, each operatory, and the sterilisation room, since each has a different floor area and a different reason to need clean air.

For every zone, state the floor area, the target air changes per hour, the resulting required CADR, and the unit proposed to meet it. This gives your ops manager something concrete to sign off on, rather than a single line that says 'air purifiers for the clinic', which leaves room count and unit choice unclear until it is too late to change. A zone-by-zone breakdown also makes it easier to catch a room that was left out entirely, which happens more often than a rushed opening timeline would suggest.

CADR and Coverage Area by Room Type

Required CADR in cubic metres per hour is calculated as floor area in square metres multiplied by ceiling height in metres multiplied by the target air changes per hour. Dental procedure rooms benefit from a higher target, generally 6 or more air changes per hour, because of the aerosol generated during treatment, while a waiting area is typically specified at 5 or more.

Once you have the required CADR for each room, match it to a unit rated to deliver at least that figure. A compact consult room might be well covered by a unit rated around 300 cubic metres per hour, while a larger waiting area or open-plan clinic needs a unit rated closer to 480 cubic metres per hour or more. Our size calculator runs this formula for you, and it is worth doing per room rather than averaging across the whole clinic, since a single average figure tends to under-size the smallest rooms and over-size the largest.

Certifications to Request From Any Supplier

Before comparing prices, request the certifications behind any medical-grade claim: an FDA Class 2 medical device listing, H13 medical-grade HEPA filtration, CE marking, RoHS compliance, and ISO 9001 and ISO 14001 for the manufacturer's management systems. A supplier who cannot produce these on request is a supplier whose specification sheet you should not take at face value.

It is reasonable to ask a supplier how they would answer a challenge to their own claims. Our claims verification page sets out the standard we hold ourselves to, including what we will state and what we will not, and it is a useful benchmark to hold any supplier against, not just us.

Comparing Rental Terms Against Outright Purchase

Purchase makes sense when the clinic is in fixed premises for the long term and has the internal capacity to handle filter changes and servicing itself. Rental suits a clinic that wants filters, servicing and delivery bundled into one predictable line item, or that expects to move premises or scale room count within a few years.

Whichever route you choose, write the servicing terms into the specification. A purchase agreement without a clear filter replacement schedule leaves maintenance to chance, while a rental agreement should state that servicing is included rather than assumed.

Getting Sign-Off With a Free Site Survey First

A procurement officer asking for a written specification before approving a purchase order is asking the right question, but the numbers in that specification are only as good as the survey behind them. A free room-by-room Air Report measures your actual floor plan, ceiling heights and room use, and returns a unit and count recommendation you can put straight into the purchase order.

This also protects you if the specification is later questioned. A survey-backed figure is easier to defend to an ops manager or an auditor than a number pulled from a generic product page, and it usually takes less time than drafting the specification from scratch would anyway.

Next step

Start the specification with an actual survey rather than an estimate. Request a free room-by-room Air Report before you finalise the purchase order for your new dental centre.

Frequently asked

What CADR is appropriate for a dental operatory versus a waiting area?

A dental operatory generally warrants a higher target of 6 or more air changes per hour because of aerosol from procedures, while a waiting area is typically specified at 5 or more. Multiply the room's floor area by its ceiling height and the target air changes per hour to get the required CADR in cubic metres per hour, and repeat the calculation for each room separately.

What certifications should a procurement officer verify before signing off?

Ask the supplier to produce an FDA Class 2 medical device listing, H13 medical-grade HEPA documentation, CE marking, RoHS compliance, and ISO 9001 and ISO 14001 certificates for the manufacturer. Verify these against the supplier's own claims-verification policy rather than accepting a specification sheet on its own.

How does a free site survey help a procurement decision?

A free room-by-room survey measures actual floor area and ceiling height per room and returns a specific unit and count recommendation, replacing guesswork with figures a supplier can be held to. It also gives the procurement officer a defensible basis for the purchase order if the specification is later reviewed.

Related reading

• How We Verify Our Claims