--- product_id: 458796872 title: "Brondell Horizon O2+ Air Purifier Replacement Filter PHZF-21, Four Stage Composite Filter with Granulated Carbon Filtration" brand: "brondell" price: "$149.00" currency: USD in_stock: true reviews_count: 5 category: "Brondell" url: https://www.desertcart.us/products/458796872-brondell-horizon-o2-air-purifier-replacement-filter-phzf-21-four store_origin: US region: United States of America --- # LED filter life indicator 4-in-1 composite filtration 99.97% particle capture >0.3 microns Brondell Horizon O2+ Air Purifier Replacement Filter PHZF-21, Four Stage Composite Filter with Granulated Carbon Filtration **Brand:** brondell **Price:** $149.00 **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your air game—because your home deserves the freshest vibe. ## Quick Answers - **What is this?** Brondell Horizon O2+ Air Purifier Replacement Filter PHZF-21, Four Stage Composite Filter with Granulated Carbon Filtration by brondell - **How much does it cost?** $149.00 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/458796872-brondell-horizon-o2-air-purifier-replacement-filter-phzf-21-four) ## Best For - brondell enthusiasts ## Why This Product - Trusted brondell brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **HEPA Precision:** Captures 99.97% of airborne particles as small as 0.3 microns—breathe smarter, live better. - • **Trusted Innovation:** CARB certified and backed by Brondell’s 16 years of healthy home expertise—quality you can count on. - • **Quad-Layer Powerhouse:** Four-stage composite filter traps dust, VOCs, odors & formaldehyde for pristine air. - • **Effortless Maintenance:** Single filter design with LED life indicator makes replacements quick, easy, and hassle-free. - • **Odor & Gas Neutralizer:** Granulated carbon honeycomb structure eliminates odors and harmful gases with unmatched efficiency. ## Overview The Brondell Horizon O2+ Replacement Filter PHZF-21 features a cutting-edge 4-in-1 composite design combining pre-filter, granulated carbon, cold catalyst, and HEPA layers to capture 99.97% of particles above 0.3 microns and neutralize odors and harmful gases. With a smart LED filter life indicator and easy single-filter replacement, it’s engineered exclusively for the Brondell Horizon P200 air purifier, delivering cleaner, fresher air for spaces up to 480 sq ft. CARB certified and backed by Brondell’s 16-year legacy, this filter ensures healthier indoor air with minimal effort. ## Description The Brondell O2+ Horizon True HEPA air purifier is the simplest solution of smarter air filtration and better breathing in any home. With intelligent ion technology and its 4-in-1 composite air filter, Horizon not only removes 99.97% of airborne irritants above 0.3 microns in size, but it also leaves your air completely refreshed for a healthier home. The Horizon’s composite filter combines four filtration layers plus ionization to create a five-stage filtration system: 1. Pre-Filter – Extracts large particles such as dust, hair, and lint. Traps odors, harmful gases, VOCs, and decomposes formaldehyde. Reduces formaldehyde, benzene, xylene, ammonia, VOCs and other harmful gases. The optional, on-demand intelligent ion can be activated by pressing the Ion button on the control panel. This will prompt the unit to emit negatively charged ions into the air to attract and trap positively charged ions, including irritants such as dust and particulate. Plus, it is CARB certified, so you can have peace of mind knowing it won’t emit a harmful amount of ozone. Headquartered in San Francisco and backed by maverick tech mogul, Mark Cuban, Brondell boasts a 16-year history as one of the most innovative and unique healthy home brands in the North American market. Discover a better way forward for you and your family with their dynamic catalog of leading-edge bidet products, water filtration, air purification, and healthier shower solutions. Brondell products are backed by industry-leading, in-house customer support and comprehensive warranties to ensure you’re not only getting the best possible product but you’re also 100% satisfied with all your healthy home purchases. Review: Great! As always Review: Filters the air beautifully ## Features - 4-in-1 COMPOSITE FILTER: The Horizon’s composite filter combines 4 filtration layers – the Pre-filter layers capture particles while the Granulated Carbon and Cold Catalyst layers filter VOCs and other harmful gases. - TRUE FILTRATION: Captures pollen, dust and 99.97% of particles above 0.3 microns in size. - GRANULATED CARBON: Traps odors, harmful gases, VOCs, and decomposes formaldehyde. The unique honeycomb structure is designed for maximum coverage and powerful odor elimination. - FILTER LIFE INDICATOR: Simple LED reminder lets you know when it’s time to switch to a new filter. - EASY FILTER REPLACEMENT: The single 4-in-1 filter makes filter replacement quick and easy. For use with Brondell Horizon P200 only. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B084644YRS | | Brand | Brondell | | Brand Name | Brondell | | Colour | Black (Replacement Filter) | | Control Method | Touch | | Controller Type | Remote Control | | Customer Reviews | 4.7 out of 5 stars 84 Reviews | | Filter Type | HEPA | | Floor Area | 480 Square Feet | | Global Trade Identification Number | 00819911014903 | | Item Dimensions D x W x H | 4.1D x 25.9W x 41.9H Centimeters | | Item Weight | 816 g | | Manufacturer | Brondell | | Model Number | PHZF-21 | | Particle Retention Size | 0.3 Micrometer | | Power Source | Corded Electric | | Power Source Type | Corded Electric | | Product Dimensions | 4.1D x 25.9W x 41.9H Centimeters | | Specification Met | CARB Certified | | UPC | 819911014903 | ## Product Details - **Brand:** Brondell - **Colour:** Black (Replacement Filter) - **Item Weight:** 816 g - **Power Source:** Corded Electric - **Product Dimensions:** 4.1D x 25.9W x 41.9H Centimeters ## Images ![Brondell Horizon O2+ Air Purifier Replacement Filter PHZF-21, Four Stage Composite Filter with Granulated Carbon Filtration - Image 1](https://m.media-amazon.com/images/I/71vtRtOA4lL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great! As always *by J***Y on 16 October 2025* ### ⭐⭐⭐⭐⭐ Filters the air beautifully *by K***S on 10 December 2025* ### ⭐⭐⭐⭐⭐ Great! *by R***H on 23 June 2025* --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/458796872-brondell-horizon-o2-air-purifier-replacement-filter-phzf-21-four](https://www.desertcart.us/products/458796872-brondell-horizon-o2-air-purifier-replacement-filter-phzf-21-four) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-04-27*