TL;DR: Leemone TP04 filter is a solid alternative to Dyson's official HEPA filter, offering comparable particle capture efficiency at a lower price. However, minor quality control inconsistencies and slightly lower activated carbon performance were observed. Activated Absorption: While the Leemone filter's activated carbon layer adsorbed household odors effectively, its capacity for certain VOCs (volatile organic compounds) like formaldehyde was slightly lower than the Dyson filter. This might be a minor concern for homes with significant off-gassing or chemical exposure. Build and Budget: Build quality is generally good, but I noticed slight inconsistencies in pleat spacing compared to the Dyson filter. However, the Leemone filter's significantly lower price makes it a compelling alternative for budget-conscious buyers prioritizing core HEPA filtration over maximum VOC absorption. Final Verdict: Leemone TP04 filter is a technically competent and competitively priced replacement. While it may not perfectly match the OEM in every aspect, its strong HEPA performance and cost-effectiveness make it a viable option for Dyson purifier owners.
