First without the ashcatcher, you will be inhale alot dirt in your mouth, and you will be cough alot, So how do you prevent  smoking and not cough ?

What is a ashcatcher ? what it do?

A glass pipe ashcatcher is an accessory designed to enhance the smoking experience by preventing ash and debris from entering the main chamber of a glass pipe or water pipe. It acts as an additional filtration and purification device, helping to keep the pipe cleaner and providing a smoother and more enjoyable smoking session.

The ashcatcher typically consists of a glass chamber or attachment that connects to the joint of the pipe, between the bowl and the water chamber. It is usually made of high-quality borosilicate glass, known for its durability and heat resistance.

The primary function of the ashcatcher is to trap ash and other particles that are generated during the smoking process. When the user inhales from the pipe, the smoke passes through the bowl and downstem, and then enters the ashcatcher. As the smoke travels through the ashcatcher, any ash or debris is caught in the chamber, preventing it from entering the main pipe.

Ashcatchers come in various designs and styles, including simple glass chambers with a single or multiple percolators for additional filtration. Some ashcatchers also feature built-in diffusers or additional accessories like splash guards or ice catchers, providing further customization options and enhancing the smoking experience.

The benefits of using a glass pipe ashcatcher include:

1. Improved filtration: The ashcatcher provides an extra layer of filtration, helping to remove impurities and ensuring a cleaner and smoother smoking experience.

2. Easier cleaning: With an ashcatcher, the main chamber of the pipe stays cleaner for longer periods, reducing the frequency of cleaning the entire pipe.

3. Protecting the pipe: By trapping ash and debris, the ashcatcher helps prevent clogs and residue buildup in the main chamber, extending the lifespan of the pipe.

4. Customization: Ashcatchers come in various designs, sizes, and percolator options, allowing users to personalize their smoking setup and tailor it to their preferences.

When using a glass pipe ashcatcher, it's important to regularly clean it to maintain optimal performance and prevent any buildup that could affect the airflow. Proper cleaning techniques will depend on the specific design and material of the ashcatcher, but typically involve rinsing with warm water or using specialized cleaning solutions.

Take a joint for instance. If the joint is rolled too loosely and there is alot of space between the paper and the marijuana, this can cause you to cough very hard, if the joint is rolled too tightly there will be no airflow and it feels almost like trying to such a piece of fruit through a straw. The best way is to roll so the paper is tightly and evenly wrapped around the weed, and have a tiny bit of room for airflow through the joint. This will make for much less harsh smoke and you will cough less. Paper itself is noxious to the lungs when burning, so even if you do not cough while you smoke a joint you will likely have some coughing going on later.

Once you get a feel for how much oxygen you need for how much smoke, you can take small air inhalations right before/after you inhale the joint, and get the right balance in your lungs to avoid coughing, I figured this out around 7 years ago, and I never have an unpleasant reaction when smoking.

If you are smoking a bong make sure it has good airflow, no restrictive drag where your lungs feel they are over working for the amount you inhale, I find an 18 inch beaker bong with a 1.5–2 inch mouth piece is perfect for getting a smooth toke. If there is drag, what I do is mid toke, break the seal of my mouth to the bong and get a little extra oxygen with it.

If the piece has no drag, you can use a diffuser downstem (which splits the stream of smoke into many streams in the water making it less harsh on the throat) and put some ice into the shaft of the bong. The diffuser will make the smoke easier to take and the ice cools it so your chest is not inflamed by it. Make sure the weed is packed into the bowl well but not so much it is a strain to inhale.

anyway ashcatchers and Pre-Coolers are optional bong attachments that provide an extra stage of filtration before the smoke even enters the main chamber of your Bong

Overall, a glass pipe ashcatcher is a valuable accessory for those seeking a cleaner and smoother smoking experience, providing additional filtration and protection for your glass pipe or water pipe.