We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-22 · 6 min read · Independent comparison
If you want to stop parchment liners from curling up and burning in your air fryer, choose Furnsii 12Pcs; if you need to strip baked-on grease off the air fryer, grill, and oven itself, choose Fiopet Fast Acting Heavy. These two products get lumped together because both show up in "air fryer maintenance" searches, but they do completely different jobs. One is a physical accessory that holds your liner in place while you cook. The other is a spray that cleans the mess afterward. Read on and you'll know exactly which one belongs in your kitchen.
• Furnsii 12Pcs biggest strength: a 12-piece set of silicone-and-magnet buckles that lock parchment liners flat against a metal basket, so paper can't lift and touch the heating element. Up to 570°F heat resistance.
• Furnsii 12Pcs biggest trade-off: it only works if a magnet actually sticks to your air fryer basket. Non-metal baskets are a no-go, and it does nothing for grease already baked onto the appliance.
• Fiopet Fast Acting Heavy biggest strength: a 16.9 fl oz non-drip foam spray that dissolves baked-on grease on air fryer parts, ovens, stovetops, hoods, and grill grates, with no scrubbing required.
• Fiopet Fast Acting Heavy biggest trade-off: it's a consumable. One bottle runs out, and it's a cleaning product, not something that improves how your food cooks.
• Who Furnsii 12Pcs is for: anyone who uses disposable parchment liners and is tired of them flying up and scorching.
• Who Fiopet Fast Acting Heavy is for: anyone whose air fryer, oven, or grill has a layer of baked-on grease they want gone with minimal effort.
Furnsii 12Pcs solves one very specific, very annoying problem. When you drop a disposable parchment liner into an air fryer basket, the circulating air can catch the paper, lift it, and press it against the heating element. Best case, your liner crumples and covers the food. Worst case, it chars. Furnsii's answer is a small silicone buckle with a magnetic core that pins the liner flat to the basket edge, so airflow passes over the food instead of flipping your paper.
The design details matter here. The body is food-grade silicone with a magnetic core, and Furnsii rates the construction for high-temp resistance up to 570°F without deforming or losing magnetic strength. The magnets are described as upgraded and strong, gripping any metal basket, with a universal fit that the brand lists for Ninja, Cosori, Instant Vortex and similar air fryers. Attachment is quick-release, meaning you snap them on and pull them off without tools. Cleaning is the easy part: smooth, non-porous silicone resists grease and stains, so a wipe-down or a run through the dishwasher handles it.
Skip it if your air fryer basket isn't magnetic. Furnsii is upfront about this: test whether a regular fridge magnet sticks to your basket before buying. If it doesn't stick, these buckles have nothing to grab. Also skip it if your actual problem is a greasy, crusted appliance, because this product doesn't clean anything.
Fiopet Fast Acting Heavy: Who It's For
Fiopet Fast Acting Heavy attacks the other half of air fryer maintenance: the cleanup. It's a professional-grade degreaser spray built to dissolve baked-on grease fast, with the brand claiming it works in seconds and without scrubbing. The formula comes out as a non-drip foam, which is the detail I'd pay attention to. Foam clings to vertical surfaces like oven doors and range hood filters instead of running straight off, so it has time to break down the grease where it sits.
Versatility is the selling point. Fiopet lists it for BBQ grates, ovens, stovetops, range hoods, deep fryers, and air fryer cleaning, plus commercial kitchen exhaust hoods. It's positioned for gas, charcoal, and smoker grills alike, targeting carbon buildup and stubborn grease after heavy use. The brand says it's safe on stainless steel, ceramic, glass, and porcelain, and that it rinses easily without leaving residue. It's unscented in terms of material features, though the sheet also lists a fresh scent and low odor as a special feature, so expect something mild rather than a heavy chemical smell.
The practical format is a 16.9 fl oz bottle, single pack, in spray form. That's a reasonable size for a home kitchen, but it is a consumable. When it's gone, you buy more. In my opinion, this is the pick for anyone who dreads scraping the air fryer drawer, the oven door, or the grill grates, and who wants a spray-and-rinse routine instead of steel wool and elbow grease.
Skip it if your air fryer isn't actually dirty, or if you're looking for something that improves cooking. This is purely a cleaner. And if you only ever wipe your air fryer with a damp cloth and it works fine, you don't need a heavy-duty degreaser at all.
• Best for preventing liner fires and curling → Furnsii 12Pcs. The magnetic buckles hold parchment flat against the basket so it can't reach the heating element.
• Best for dissolving baked-on grease → Fiopet Fast Acting Heavy. A non-drip foam degreaser aimed at ovens, air fryers, hoods, and grill grates.
• Best for repeat use over time → Furnsii 12Pcs. It's a durable accessory you reuse indefinitely; Fiopet is a bottle that empties.
• Best for whole-kitchen and outdoor grill cleanup → Fiopet Fast Acting Heavy. Furnsii only touches the air fryer basket.
• Best for dishwasher-friendly maintenance → Furnsii 12Pcs. Non-porous silicone wipes clean or goes in the dishwasher.
• Best for vertical, greasy surfaces → Fiopet Fast Acting Heavy. The clinging foam is designed for oven doors and hood filters.
• Best for air fryer owners who use parchment liners → Furnsii 12Pcs. This is the exact problem it was built for.
• Best for households with multiple greasy appliances → Fiopet Fast Acting Heavy. One spray covers the oven, stove, hood, air fryer, and grill.
• Best pairing → both. They don't compete. Furnsii protects during cooking; Fiopet cleans up after.
If I had to pick one, I'd buy Furnsii 12Pcs. It fixes a real safety and cooking problem that won't go away on its own, it's reusable, and it costs nothing per use once you own it. Fiopet Fast Acting Heavy is genuinely useful, but it's a consumable cleaner that duplicates what a decent degreaser already does. Buy Fiopet if your priority is a spotless, grease-free air fryer and grill. Buy Furnsii if you want your parchment liners to stay put and stop burning. If you can, get both, since they solve different problems on the same appliance. Check the current price on Amazon before deciding, since that's the one variable I can't compare here.
FAQ
If you use disposable liners and yours keep lifting or scorching, yes. The magnetic buckles lock the paper flat against a metal basket, and the set gives you 12 pieces so you always have spares.
Only if your basket is magnetic. Furnsii recommends testing whether a regular magnet sticks to your basket first. If it does, the buckles grip firmly and the fit is listed as universal across major brands.
They do different jobs. Furnsii prevents liner problems during cooking; Fiopet removes grease afterward. If your liners burn, buy Furnsii. If your appliance is greasy, buy Fiopet.
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See also: Goo Gone Grill vs TUMPLUS Fast Acting Heavy, INFRAOVENS Air Fryer Grill vs Mity rain 12PCS, air fryer breakfast burrito