Disagree with this comment - firstly it is essential that when fitting a snorkel it is properly sealed to prevent any water seeping in and secondly by default snorkels are not dust proof. If you find yourself in a convoy in dusty conditions just hang back a bit to minimize dust intake. Also if you have a Ram snorkel you may want to consider a fitting dust cover over the head for those especially dusty sections or alternatively if you regularly travel in dusty conditions a cyclone head is quite effective at minimizing dust intake
Probably should not have made a simplified and basic reply. Yes on a dust snorkel attachment, over the regular scoop. The Toyota factory OEM snorkel is not waterproof. The AEV on the Chevy Colorado is made by SAFARI and is waterproof. Other brands are also waterproof, but do your research. They are not created equal. Overall a snorkel will reduce dust into the filter, but the cylindrical cone attachment will reduce dust even more.
Check You-tube on this, some great info is there on this subject.
I wondered about this, but watching some videos, have changed my mind. Watching 4x overland, the importance of a snorkel in dry desert environments, was rammed home. If you CONVOY, those that are tail end charlie will accumulate a lot of dust in their vehicles air filters. Watch the videos, you will be amazed. If you decide to get one,.... get one that is waterproof. By default it will be dust proof also.
EDIT:
"and secondly by default snorkels are not dust proof.".........................pre-air filter=yes on that, post air filter=THEY BETTER BE!
4x overland/ Andrew St. Pierre, you tube video,................title=
Raised Air Intake Snorkels. Do they work?
EDIT UPDATE:
Found this You-Tube video by (4 WD Action) ----
Air OPUS camper trailer VS. Cape York – for those who wanted to see it in more detail BONUS VIDEO! check at 2.49 into it, to see a pre-filter mounted on a snorkel.
This is also touched on, in the OB "air filter" thread.
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Ulysses said:
.... I use these dust covers for sections where there’s a fair bit of bull dust.
4x4 Pre-Cleaners
They do a good job but be sure to limit use I.e. not designed for permanent use
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Or, use something like this
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