The top offer on this page is the 10% off Classic 605 promo code, and it is the best choice when the Classic 605 is the model you want to buy. Use the promo code at checkout to take 10% off that specific model; the code cannot be combined with any other offer. Other active deals include sitewide sale reductions, bundle and subscription discounts, accessory deals from $22.99, and free shipping on orders $35 and up.
Big spend or multiple items: If your cart contains various models or multiple purifiers, start by checking which items are marked as sale items. The Up to 50% Off Sale Products deal can give the biggest percentage cut on marked down products; if your items are included in that sale you will usually save more than a single item code. Use the sale discount that applies automatically at checkout for those sale items.
Buying the Classic 605 specifically: Apply the 10% off Classic 605 promo code at checkout. For example, on a $500 Classic 605 order, the code takes 10% off (percent 10%), leaving a final price of $450 and a saving of $50. (Example: original $500, discounts [percent 10%], final $450, saving $50.)
Buying a marked down item on sale: If the purifier you want is on the Up to 40% Off Selected Products or Up to 50% Off Sale Products listings, the automatic sale discount usually beats the 10% Classic 605 code unless your purchase is the Classic 605 and not on sale. For example, on a $300 sale item at 40% off, the automatic discount (percent 40%) reduces the price to $180, a saving of $120. (Example: original $300, discounts [percent 40%], final $180, saving $120.)
Buying a bundle or subscription: If you plan to buy a bundle of purifier plus filters, the 15% Off Bundles offer applies to qualifying bundle SKUs and cannot be combined with other offers. For recurring filter deliveries, the 15% Off Subscription will reduce the cost of those scheduled orders.
Small purchases and accessories: Accessories start at $22.99. If your total reaches $35 you get Free Shipping With Orders $35+ (the threshold is $35). For small accessory orders under $35, the newsletter signup may be useful for first time customer promotions, but it is a signup only offer and not the page lead.
OUR RECORDS: We list 16 Blueair offers in the 12 months to October 2026, and the biggest percentage sale in that period was up to 60% off in September 2026. Our records show no team checkout tests for Blueair in the 12 months to October 2026.
When choosing between offers, pick the single discount that gives the lowest total for the same items. Use the 10% Classic 605 promo code only for that model and only when it yields a lower final price than any available sale price. If an item is already in a sale marked with a greater percent off, take the sale price instead. Note the bundle and subscription discounts apply only to qualifying SKUs and the 10% Classic 605 code specifically cannot be used with other offers.