BuyBeehive via eBay offers the Holmes HEPA Mini Tower Air Purifier, model no. HAP412N-U, for $24.99 with free shipping. That's tied with our mention from a week ago and the lowest total price we could find by $18. It's designed for rooms of up to 130 square feet and features three speed settings, optional ionizer, and HEPA-type filter.
Buybeehive via eBay offers the Holmes HEPA-Type Air Purifier, model no. HAP9412B-UA, for $39.99 with free shipping. That's the lowest total price we could find by $10. Designed for rooms up to 110 sq. ft., it features HEPA-type filtration enhanced with Arm & Hammer baking soda.