I think a dust mask is probably good enough, depending. Do you have a beard? Does it let dust around it? I use pollen masks and dust masks woodworking (that includes sanding), and I do have a dust collector I kick on when using my belt sander. My sawmill is outside, and I put on a mask when the wind blows wrong. I like the dist masks that have two bands, so I can adjust them to hold tighter to my face, That keeps the dust from getting through under my beard. Those single strap ones don't quite block that.

Like mentioned I'm no so sure the sawdust from the mill is much of a hazard unless the wind is blowing it in your face. When that happens I just quit sawing until there's now wind or it's blowing the other way.

A dust collector is essential in my woodworking shop, but I seldom wear any breathing protection with the mill. It's the very fine dust that ruins lungs. I sometimes wear eye protection though when the wind is blowing. On second thought, I remember using a handkerchief, bandit-style, when milling against the wind in my early sawmilling days (before I had the mill under a roof and properly positioned with respect to the prevailing winds).

Hi, i'm a worker
I wear 3M N95 when I work on construction site and it seems to work pretty well.

I recommend you use both, it's best for your health and for the cleanliness of the work space as well.

I'd recommend both, but I might be a bit paranoid when it comes to health-related issues. But I do honestly think that, especially if you do a lot of work and the environment gets heavily dusty, the mask on its own isn't enough.

I often use the MONATA reusable Dust Pollution Mask to limit dust. In my opinion, a dust mask is enough

In my views a dust mask Respirators is must. A major health issue faced by most carpenters is a respiratory illness that is caused by the sawdust. Most carpenters and woodworkers don't take precautionary measures while at work, and this usually ends up in severe complications associated with the respiratory tract.
I recently purchased 3M Ultimate FX full facepiece . It is quiet useful for me. It has
Complete protection for your face
Best suited for industrial, sawing and carpentry works
Long-lasting straps
Silicone material for better sealing

You can also look for other Respirators from below article:-
https://theedgecutter.com/best-dust-masks/

This article is quiet comprehensive and helped me any my friends
I recommend to read Things to consider when choosing a dust mask for woodworking first as there are many factors on which a good Respirators depends.

In the air, there are countless types of dust and bacteria, so in my opinion, phoodle just a mask is not enough