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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-23 · 6 min read · Independent comparison
• SIUDANGKA 4 — biggest strength: 15 x 15 inch square Teflon (fiberglass) mats that are BPA- and PFOA-free, reusable, and versatile enough to work as oven liners, BBQ grill mats, baking mats and drip pans, rated to 500°F.
• SIUDANGKA 4 — biggest trade-off: the 15 x 15 inch square shape is a general fit rather than a precise match for a specific Breville tray, so expect to position rather than drop it in.
• GWYXC 4 — biggest strength: custom-sized 16" x 12" sheets made for the Breville BOV900BSS/BOV950BSS, trimmable with kitchen scissors, and dishwasher safe.
• GWYXC 4 — biggest trade-off: no stated temperature rating beyond the 500°F heat-resistance claim, and it's sized around the Breville footprint rather than being a universal square.
• Who each pick is for: SIUDANGKA 4 for cooks who want one liner that moves between oven, grill and baking sheet; GWYXC 4 for Breville Smart Oven Air Fryer Pro owners who want a fitted floor liner and easy washing.
SIUDANGKA 4 is the more flexible of the two. You get four 15 x 15 inch rectangular mats made from fiberglass coated in Teflon, and the brand states they're BPA- and PFOA-free. The square footprint is the interesting part — it's big enough to line the bottom of a toaster oven or air fryer base, but it also works as a grill mat, a baking mat, a pan liner, or a drip pan under whatever you're roasting. If you own more than one cooking appliance, that one mat pulling double duty is genuinely useful.
The material story matters here. Fiberglass with a non-stick coating is what gives these mats their reusable, wipe-clean character — you're not buying a stack of disposables, you're buying four sheets you keep. SIUDANGKA rates them to 500°F, which covers normal roasting, baking and air frying temperatures. The brand's own guidance is to read the manual first and keep the mat away from direct contact with heating elements or open flames, which is the standard warning for this category and worth respecting.
Who should buy it: anyone who wants a multi-surface liner — oven floor one day, grill the next, baking sheet the third. It's also a reasonable pick if your appliance isn't a Breville, since the square shape travels well across brands. Who should skip it: if you specifically want a liner cut for the Breville Smart Oven Air Fryer Pro tray, the square shape means you'll be fitting it by eye rather than dropping it in.
GWYXC 4 is the fit-first option. These are 16" x 12" fiberglass sheets, and the brand sizes them for the Breville BOV900BSS and BOV950BSS Smart Oven Air Fryer Pro. The pitch is simple: a liner that matches the oven floor so there are no overlaps or gaps, and it catches drips from the first second. If you've ever chased grease into the corners of a Breville base, that specificity is the whole point.
The other half of the story is cleanup. GWYXC calls these dishwasher safe and says a warm soapy water wipe handles most messes, with burnt sugar sliding off. That's a meaningful difference in daily use — a liner you can rinse or rack is a liner you'll actually keep using instead of letting it sit dirty. The sheets are also trimmable with standard kitchen scissors if you're working with a smaller tray, so the 16" x 12" size isn't a dead end for other appliances.
The material is fiberglass, BPA- and PFOA-free, heat resistant to 500°F, and the brand says it won't melt or give off odors. Like the SIUDANGKA mats, they need to stay off the heating elements. Beyond the oven floor, GWYXC lists cookie sheet liners, BBQ grill mats and pizza stone protectors as other uses, so it's not locked to one job either — it's just shaped for the Breville first.
Side-by-Side: Which Should You Choose?
• Best fit for a Breville BOV900BSS/BOV950BSS → GWYXC 4 — 16" x 12" sheets sized for that oven floor.
• Best for multi-appliance use → SIUDANGKA 4 — 15 x 15 inch mats that work as grill mats, baking mats, pan liners and drip pans.
• Best for dishwasher cleanup → GWYXC 4 — the brand states these sheets are dishwasher safe.
• Best for trimming to a smaller tray → GWYXC 4 — cuttable with standard kitchen scissors.
• Best for a non-Breville oven or a square tray → SIUDANGKA 4 — the square shape is the safer general fit.
• Best heat ceiling → tie — both are rated to 500°F.
• Best material reassurance → tie — both are fiberglass and BPA/PFOA-free.
• Best for someone who wants one liner to do everything → SIUDANGKA 4 — the multipurpose list is longer and the shape is more universal.
In my opinion, most people shopping this exact comparison own a Breville Smart Oven Air Fryer Pro, and for them GWYXC 4 is the smarter buy: the 16" x 12" sheets are cut for that oven, they trim if needed, and the dishwasher-safe claim makes them easy to live with day after day. I'd pick SIUDANGKA 4 instead if versatility matters more than a fitted edge — the 15 x 15 inch square mats move between oven, grill and baking sheet without complaint, and they're rated to the same 500°F. Both are reusable fiberglass mats from brands that state BPA- and PFOA-free materials, so the real decision is shape and cleanup, not safety.
FAQ
how to use reusable air fryer liners
Place the mat on the bottom of the oven or air fryer base before cooking so it catches drips and crumbs, and keep it clear of the heating elements. SIUDANGKA 4 and GWYXC 4 both handle up to 500°F, and both brands advise reading the manual first and avoiding open flames.
GWYXC 4 is described as dishwasher safe, and the brand says warm soapy water handles most residue. SIUDANGKA 4 mats are reusable non-stick sheets, so a warm soapy wipe is the sensible routine for both — let them cool first, then wash and dry flat.
how to use air fryer liners
Use them as a barrier between your food's drips and the appliance floor — not as a replacement for the basket or tray. Both of these are designed for the oven base or a baking sheet, and both are reusable, so you're swapping disposables for four sheets you keep.
can you put liners in air fryer
Yes, with the same caveat both brands give: never let the liner touch the heating elements or an open flame. SIUDANGKA 4 and GWYXC 4 are fiberglass mats rated to 500°F, which is within normal air fryer and oven roasting range.
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