Please choose the correct ending to complete the given sentence: Health: [header] How to flush sinuses [title] Choose an irrigation device. [step] There are many different kinds of nasal irrigation devices on the market today. These devices are available at most pharmacies, naturopathic stores, and online.

Ending1: More and more devices use irrigation devices depending on the type of nasal irrigation device. More devices require a lighter pressure and more colorful irrigation systems. Ending2: [title] Put pressure on the sinuses using the warm water bulb and soap from the washing machine. [step] Put the device into the sink, as this will ensure that the water is drained through the faucet. Ending3: They range in size, shape, and longevity (some are disposable), but each essentially serves the same purpose: to flush out your sinuses. Common irrigation devices include : [substeps] Neti pots bulb syringe squeeze bottle [title] Use safe water. Ending4: [substeps] If you use an irrigation device that uses a water-powered, condenstage irrigation device, you may be able to make smaller irrigation and irrigation devices for the price of your local hardware store. [title] Dehumidify pipes to stop air from passing down between pipes.

Answer format: ending1/ending2/ending3/ending4