Perfect Compatibility with APH4000 Air Purifier: Genuine KNKA replacement filters are precisely designed for the APH4000 air purifier, ensuring a secure fit and reliable performance. Third-party filters may not meet the same quality standards, leading to poor sealing, reduced efficiency, or potential device issues. For best results, always use original KNKA filters to maintain consistent air purification performance. Advanced Filtration Technology: Traps fine particles down to 0.3 microns, such as dust, pollen, and pet dander, helping maintain a fresh and comfortable indoor environment. The activated carbon layer helps reduce common household odors from cooking, pets, and smoke. Two-Pack Genuine Filters: This set includes two original KNKA filters designed for reliable performance and long-lasting use. Each filter has an estimated service life of up to 3,000 hours. It is recommended to replace the filters every 6 to 8 months for optimal performance.
10% below Dipp's typical recorded price What does “typical” mean?
At the November 4 check, the price was $35.99 — the lowest Dipp has recorded across 48 checks since October 9.
It has held that level for 4 days.
Lowest seen · 10% below typical · Checked 2026-11-04
Limited-time deal · Save 10% · Ends Nov 9, 2026, 2:59 a.m. ET
Not buying today? Get one email if this price drops.
Price as of Nov 4, 2026, 11:47 a.m. EST. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.ca at the time of purchase will apply to the purchase of this product. As an Amazon Associate I earn from qualifying purchases.Prices and availability change.
This is Dipp's observed history, not every price ever offered on Amazon.ca.
The latest observations Dipp has stored for this product. These are periodic checks, not a record of every price Amazon displayed.
| Checked | Price |
|---|---|
| Nov 4, 2026, 4:47 a.m. | $35.99 |
| Nov 3, 2026, 3:47 p.m. | $35.99 |
| Nov 3, 2026, 1:47 a.m. | $35.99 |
| Nov 2, 2026, 11:47 a.m. | $35.99 |
| Nov 1, 2026, 10:47 p.m. | $35.99 |
| Nov 1, 2026, 8:48 a.m. | $35.99 |
| Oct 31, 2026, 8:48 p.m. | $35.99 |
| Oct 31, 2026, 6:47 a.m. | $35.99 |
| Oct 31, 2026, 12:47 a.m. | $39.99 |
| Oct 30, 2026, 10:47 a.m. | $39.99 |
| Oct 29, 2026, 9:48 p.m. | $39.99 |
| Oct 29, 2026, 8:47 a.m. | $39.99 |
Dipp’s recorded low is $35.99 (Oct 31, 2026). Get one email if it goes below that.
Nearest prices in this category, so today’s number has something to sit against.
69 checks since Sep 26 · $31.99–$39.99
Price as of Nov 4, 2026, 6:47 a.m. EST. Prices and availability change.
188 checks since Jul 24 · $35.45–$56.50
Price as of Nov 4, 2026, 6:47 a.m. EST. Prices and availability change.
183 checks since Jul 25 · $47.41–$84.89
Price as of Nov 4, 2026, 7:48 a.m. EST. Prices and availability change.
182 checks since Jul 24 · $39.48–$61.68
Price as of Nov 4, 2026, 7:47 a.m. EST. Prices and availability change.
172 checks since Jul 26 · $34.18–$75.61
Price as of Nov 4, 2026, 10:48 a.m. EST. Prices and availability change.
123 checks since Aug 20 · $79.97–$179.97
Price as of Nov 4, 2026, 6:48 a.m. EST. Prices and availability change.
The wider Home catalogue on Amazon.ca, each product with its own recorded price history.