JavaScript If conditional statement not screening input values

I am working on a pre-BootCamp problem. I am taking an object and removing any properties that have odd numeric values, and then returning the object. Why are the odd values not being filtered out?

/*
Write a function called "removeOddValues".

Given an object, "removeOddValues" removes any properties whose valuse are odd numbers.

var obj = {
  a: 2,
  b: 3,
  c: 4
};
removeOddValues(obj);
console.log(obj); // --> { a: 2, c: 4 }
*/

function removeOddValues(obj) {
  for (var values in obj) {
      if (obj[values] === 'Number' && obj[values] % 2 !== 0) {
           delete obj[values]
      }  
      }   
      return obj;
};


var obj = {
  a: 2,
  b: 3,
  c: 4
};


removeOddValues(obj);

output:
{a: 2, b: 3, c: 4}