Which line: household or air
The first choice is the line, and it is a real choice: household humidifier and air humidifier are separate categories, and neither covers the other. A buyer who needs a household humidifier should read the household page; a buyer who needs an air humidifier should read the air page. The two pages describe different type families, and an inquiry that names the wrong line will receive an answer for the wrong product.
If you are unsure which line fits, describe the space and the need in the inquiry, and let the supplier confirm the line. An honest uncertainty, described precisely, will receive a careful answer, while a guess presented as certainty will receive a product for the wrong line. The two category pages, read together, will usually resolve the choice.
Types within the lines
Within the household line, the types are whole-home and whole-house, room, large-room, basement, greenhouse, commercial, furnace, central and HVAC forms. Within the air line, the types are room, warm-air, cool-air, steam and evaporative forms. The room-sizing guide explains how space narrows the type, and the applications guide explains how use narrows it further.
Do not choose by a single figure. A coverage figure alone does not describe a humidifier: the space, the way moisture is added, and the maintenance the type needs all matter. The inquiry should name the space, the use, and the line, so the supplier can confirm the right type from real stock information.
What to ask next
Name the line, the space, and the use, the quantity you have in mind, and the market you sell into. Ask for the specification for the exact type, the quantity terms, the lead time, and the certificates for your market, by name, with documents attached. The bulk humidifier inquiry page lists these confirmations.
Before payment, confirm the minimum order quantity and lead time for your order. Certificates are available upon request.