Best Dog Deterrent for Protecting Attacks

The Best Dog Deterrent for Protecting Attacks

Finding the best dog deterrent to prevent attacks is paramount to staying safe – especially for those who spend a considerable amount of time outdoors.

There are a handful of deterrents on the market, but they’re not all created equally. When you need it, it’s comforting to know that you have one you can trust should an incident arise.

So, let’s take a look at a few factors that come into play as you search for the best dog deterrent for an aggressive dog.

Best Dog Deterrents

Below is a list of some of the most popular choices, and some comparison information. It’s always a good idea to do some research before finding the best dog deterrent, and one that you can trust as you leave the house on a daily basis.

Take a look at a chart that we recently compiled for further side-by-side analysis of the various options available.

Air Horns for Dogs

Air horn are sometimes marketed for use with dogs, but it’s important to remember that compressed gas air horn canisters can leak causing them to run out sooner than you expect, and can explode in high temperatures.  Plus in low temperatures they can fail because the compressed gas used in the canister causes the horn part to freeze making them unreliable in these situations.

Ultrasonic Dog Deterrent

There are several ultrasonic dog deterrents on the market. While ultrasonic tones have been used for dog training for many years the high frequency sounds may not be the best choice when dealing with an aggressive dog.  From animal vocalizations motivational and structural rules we learn that high frequency ultrasonic tones are most like animal sounds of a small, whining, weak or frightened animals.  Since animal instinct and survival is based on knowing what the “threat” is all about, signaling small size, weakness or a frightened motivation is a weak position to take when defending against a dog.  Also, beam spread decreases as frequency increases, meaning with ultrasonic tones you have a smaller coverage area than with mid-range frequency tone in the human hearing range.

Spray Dog Deterrent

A spray dog deterrent such as pepper spray can be effective in deterring an attack. There are a few drawbacks to usage, however.

Some sprays come with a cone-style spray, and those can leave a lingering cloud, that can be problematic. The last thing you want is to be feeling the effects of the pepper spray yourself, as you are trying to deter an aggressive dog. You have to account for blowback, especially if you are riding or it is windy, and this can be problematic as well. It is difficult to defend yourself if you are temporarily blinded.

Audible Dog Deterrent such as K9 Sound Defense

With the Sound Defense dog deterrent, you don’t have to worry about blowback, empty or leaking canisters, or buying replacements. The noise will deter the animal and you get over 1800 2 second blasts per battery.  The product is easy to use and offers a low battery indicator light, so you always know if the battery needs to be changed.



In any situation with an aggressive dog, the primary goal is to stay safe. Sprays and air horns both carry an inherent risk.

It’s up to you to weigh the pros and cons of your personal situation and find the best dog deterrent. We think that Sound Defense keeps people safe with the least amount of user risk attached.

If you have any further questions, contact us today!

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