Indoor air quality replacement: scope, costs, and what to ask

What replacement should address

Review whether the existing device is still the right approach to the concern. Ask what the replacement does differently, how it fits the HVAC system, and what consumables it uses. Compare the installed price and ongoing care rather than assuming a higher specification automatically solves the source of the problem.

Understand the system being assessed

Filtration is one part of indoor air quality. Identify the concern and its source, and discuss ventilation and moisture as well as equipment options.

EPA — Air cleaners and filters in the home · Source checked 2026-09-06

Useful details to gather before the visit

You do not need to diagnose the equipment. Record the observations you can make without opening panels or accessing unsafe areas.

• Is the concern particles, odor, moisture, or a specific equipment fault?
• When and where do you notice it?
• What filters, air cleaners, or humidity equipment are already installed?

Have the model, approximate age, prior service findings, and warranty documents ready if available. Describe recent changes to the home and your goal for the visit.

Compare the whole replacement project

List every component being replaced and every component retained. Ask why the proposed scope addresses the original problem, what site work it requires, and which warranties apply. When repair remains an option, get a separate repair assessment so you can compare timing, out-of-pocket cost, and remaining uncertainty.

What affects the price for this project?

Compare the specific purpose, equipment, installation changes, replacement filters or media, maintenance, electricity use, and any testing. Ask for evidence supporting the claimed result. A low equipment price can hide recurring consumable costs.

Temperaly does not set provider prices. Ask for the charge for the proposed scope and a written explanation of exclusions. A useful quote separates required work from optional improvements so you can compare offers for the same result.

An example of a question worth resolving

A proposal promises to solve every odor with one filter. Ask which pollutant or source it addresses, what evidence supports the claim, and whether ventilation or moisture work is also needed.

Use the example to frame your questions, not to diagnose your home. Ask the provider what evidence supports their recommendation and how they will verify the result.

Choose your next step

Review the scope, price, timing, and warranty before authorizing work. Start a indoor air quality replacement request with your service city and state and what you need help with. A request does not reserve an appointment.

For a broader equipment decision, read repair versus replacement. For a current loss of comfort, see AC not cooling or no heat.