Just installed this HSIAMEN replacement filter in my Levoit LV-H133 purifier and here's the real tea:

✅ Fits perfectly - Snapped right in like the OEM filter. No gaps or weird alignment issues.

🐶 Pet odor improvement - Noticeably reduced that 'wet dog' smell in our living room within hours (we have 2 golden retrievers). Not 100% elimination but definitely better.

⚠️ Chemical smell alert - First 2 weeks had this weird floral-chemical odor. Left it running 24/7 and it eventually faded, but was sketchy at first.

💸 Price vs performance - Saved $15 vs Levoit brand, but the initial smell makes me question if it's worth the savings. Might splurge for OEM next time.

⏳ Durability test - Only been 3 months so can't confirm the 6-12 month lifespan claim yet. Filter still looks clean though!