1. Locks milk in, keeps air out, for easy upright feeding: The teat stays full of milk, even when the bottle is horizontal, so your baby can drink in a more natural, upright position. This can help reduce reflux, aid digestion, and make feeding time more comfortable for you and your little one.
2. Teat stays full of milk, not air: Our unique AirFree™ vent draws air away from the teat, so your baby swallows less air as they drink. This can help reduce common feeding issues such as colic, reflux and gas.
3. Anti-colic system proven to reduce colic and fussing: Clinical studies have shown that the Philips Avent bottle reduces colic and fussing*. How? A valve in the teat prevents vacuum build-up as your baby drinks, allowing uniterupted feeding. This can help reduce colic, gas, spit-up and burping.
4. Easy to clean & assemble, as AirFree™ vent is a single piece: The AirFree™ vent can be easily assembled with any Philips Avent Anti-colic and Classic+ bottle. Also cleaning is a breeze, thanks to the bottle's wide-neck, and there only being a few parts to clean.
5. Simple to use: To start, fill the bottle with milk, place the AirFree™ vent over the rim, and screw on the teat. Tilt the bottle downwards once to fill the teat, and you're ready to go. When feeding, make sure the AirFree™ vent stays on top. The teat will stay full of milk, even when it's horizontal, for easier upright feeding.
6. Use your bottle with or without the AirFree™ vent: You can use your Philips Avent Anti-colic bottle with or without the AirFree™ vent. The AirFree™ vent is compatible with our 4oz/125ml, 9oz/260ml and 11oz/330ml Philips Avent Anti-colic and Classic+ bottles.
7. Different teat flow rates available: As your baby grows, their drinking needs change. Choose a teat with a flow rate that’s right for their development. The Philips Avent Anti-colic and Classic+ bottles can be used with or without the AirFree™ vent—but they should only be used with Philips Avent Anti-colic and Classic+ teats.
8. Mix and match with other Philips Avent products: We designed our Anti-colic bottle range so it's easy to mix and match tops and bottoms. This way you can progress easily from bottle, to training cup, to sippy cup, with fewer parts.
9. Teat shape designed for a secure latch-on: The shape of the teat allows for a secure latch-on, and the ribbed texture helps prevent teat collapse, for uninterrupted, comfortable feeding.

Fill your Philips Avent Anti-colic bottle with milk.Place the AirFree vent between the bottle and the nipple.Fill the nipple by holding the bottle upside down.Make sure the AirFree vent is faced upwards while feeding your baby, aligning the bottle with the nose of your baby.